31970532 has 24 divisors (see below), whose sum is σ = 81379872. Its totient is φ = 9688000.

The previous prime is 31970531. The next prime is 31970537. The reversal of 31970532 is 23507913.

It is a super-2 number, since 2×31970532² = 2044229832726048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31970532.

It is not an unprimeable number, because it can be changed into a prime (31970531) 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, 120969 + ... + 121232.

It is an arithmetic number, because the mean of its divisors is an integer number (3390828).

Almost surely, 2^31970532 is an apocalyptic number.

It is an amenable number.

31970532 is an abundant number, since it is smaller than the sum of its proper divisors (49409340).

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

31970532 is a wasteful number, since it uses less digits than its factorization.

31970532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242219 (or 242217 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 31970532 is about 5654.2490217535. The cubic root of 31970532 is about 317.3827272680.

The spelling of 31970532 in words is "thirty-one million, nine hundred seventy thousand, five hundred thirty-two".