1662056 has 48 divisors (see below), whose sum is σ = 3662820. Its totient is φ = 704000.

The previous prime is 1662041. The next prime is 1662083. The reversal of 1662056 is 6502661.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 302500 = 1166^2 + 550^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16406 + ... + 16506.

2^1662056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831410).

1662056 is an abundant number, since it is smaller than the sum of its proper divisors (2000764).

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

1662056 is a wasteful number, since it uses less digits than its factorization.

1662056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1662056 is about 1289.2075085106. The cubic root of 1662056 is about 118.4536781807.

It can be divided in two parts, 166 and 2056, that added together give a palindrome (2222).

The spelling of 1662056 in words is "one million, six hundred sixty-two thousand, fifty-six".