32256978 has 16 divisors (see below), whose sum is σ = 69476736. Its totient is φ = 9925200.

The previous prime is 32256967. The next prime is 32256979. The reversal of 32256978 is 87965223.

It is not an unprimeable number, because it can be changed into a prime (32256979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206698 + ... + 206853.

It is an arithmetic number, because the mean of its divisors is an integer number (4342296).

Almost surely, 2^32256978 is an apocalyptic number.

32256978 is an abundant number, since it is smaller than the sum of its proper divisors (37219758).

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

32256978 is a wasteful number, since it uses less digits than its factorization.

32256978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413569.

The product of its digits is 181440, while the sum is 42.

The square root of 32256978 is about 5679.5226912127. The cubic root of 32256978 is about 318.3277937933.

The spelling of 32256978 in words is "thirty-two million, two hundred fifty-six thousand, nine hundred seventy-eight".