1556496 has 50 divisors (see below), whose sum is σ = 4508702. Its totient is φ = 518400.

The previous prime is 1556491. The next prime is 1556501. The reversal of 1556496 is 6946551.

1556496 is a `hidden beast` number, since 1 + 5 + 5 + 649 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1556491) and next prime (1556501).

It can be written as a sum of positive squares in only one way, i.e., 810000 + 746496 = 900^2 + 864^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1556496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 696 + ... + 1896.

2^1556496 is an apocalyptic number.

1556496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1556496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2254351).

1556496 is an abundant number, since it is smaller than the sum of its proper divisors (2952206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1556496 is a wasteful number, since it uses less digits than its factorization.

1556496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1206 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1556496 is about 1247.5960884838. The cubic root of 1556496 is about 115.8909001966.

The spelling of 1556496 in words is "one million, five hundred fifty-six thousand, four hundred ninety-six".