32057640 has 64 divisors (see below), whose sum is σ = 106862400. Its totient is φ = 8548416.

The previous prime is 32057639. The next prime is 32057659. The reversal of 32057640 is 4675023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13762 + ... + 15921.

It is an arithmetic number, because the mean of its divisors is an integer number (1669725).

Almost surely, 2^32057640 is an apocalyptic number.

32057640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32057640 is an abundant number, since it is smaller than the sum of its proper divisors (74804760).

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

32057640 is a wasteful number, since it uses less digits than its factorization.

32057640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29703 (or 29693 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 32057640 is about 5661.9466617057. The cubic root of 32057640 is about 317.6707164660.

The spelling of 32057640 in words is "thirty-two million, fifty-seven thousand, six hundred forty".