1402656 has 48 divisors (see below), whose sum is σ = 3880800. Its totient is φ = 442368.

The previous prime is 1402603. The next prime is 1402673. The reversal of 1402656 is 6562041.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440 + ... + 2208.

It is an arithmetic number, because the mean of its divisors is an integer number (80850).

2^1402656 is an apocalyptic number.

1402656 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 1402656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940400).

1402656 is an abundant number, since it is smaller than the sum of its proper divisors (2478144).

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

1402656 is a wasteful number, since it uses less digits than its factorization.

1402656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1402656 is about 1184.3377896529. The cubic root of 1402656 is about 111.9395932761.

Adding to 1402656 its reverse (6562041), we get a palindrome (7964697).

The spelling of 1402656 in words is "one million, four hundred two thousand, six hundred fifty-six".