32570940 has 48 divisors (see below), whose sum is σ = 96001920. Its totient is φ = 8228160.

The previous prime is 32570939. The next prime is 32570947. The reversal of 32570940 is 4907523.

It is a super-2 number, since 2×32570940² = 2121732264967200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 32570898 and 32570907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32570947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13146 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (2000040).

Almost surely, 2^32570940 is an apocalyptic number.

32570940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32570940 is an abundant number, since it is smaller than the sum of its proper divisors (63430980).

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

32570940 is a wasteful number, since it uses less digits than its factorization.

32570940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28602 (or 28600 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 32570940 is about 5707.0955835696. The cubic root of 32570940 is about 319.3572384402.

The spelling of 32570940 in words is "thirty-two million, five hundred seventy thousand, nine hundred forty".