31472432 has 10 divisors (see below), whose sum is σ = 60977868. Its totient is φ = 15736208.

The previous prime is 31472359. The next prime is 31472437. The reversal of 31472432 is 23427413.

It is not an unprimeable number, because it can be changed into a prime (31472437) by changing a digit.

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 as a sum of consecutive naturals, namely, 983498 + ... + 983529.

Almost surely, 2^31472432 is an apocalyptic number.

It is an amenable number.

31472432 is a deficient number, since it is larger than the sum of its proper divisors (29505436).

31472432 is a wasteful number, since it uses less digits than its factorization.

31472432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967035 (or 1967029 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 31472432 is about 5610.0295899398. The cubic root of 31472432 is about 315.7258210342.

Adding to 31472432 its reverse (23427413), we get a palindrome (54899845).

The spelling of 31472432 in words is "thirty-one million, four hundred seventy-two thousand, four hundred thirty-two".