31964942 has 8 divisors (see below), whose sum is σ = 48045000. Its totient is φ = 15949944.

The previous prime is 31964941. The next prime is 31964951. The reversal of 31964942 is 24946913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31964896 and 31964905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31964941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15017 + ... + 17012.

It is an arithmetic number, because the mean of its divisors is an integer number (6005625).

Almost surely, 2^31964942 is an apocalyptic number.

31964942 is a deficient number, since it is larger than the sum of its proper divisors (16080058).

31964942 is a wasteful number, since it uses less digits than its factorization.

31964942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32530.

The product of its digits is 46656, while the sum is 38.

The square root of 31964942 is about 5653.7546816253. The cubic root of 31964942 is about 317.3642282238.

The spelling of 31964942 in words is "thirty-one million, nine hundred sixty-four thousand, nine hundred forty-two".