31449964 has 36 divisors (see below), whose sum is σ = 68953584. Its totient is φ = 12440736.

The previous prime is 31449937. The next prime is 31449967. The reversal of 31449964 is 46994413.

It is not an unprimeable number, because it can be changed into a prime (31449967) 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 11 ways as a sum of consecutive naturals, for example, 3624 + ... + 8719.

Almost surely, 2^31449964 is an apocalyptic number.

It is an amenable number.

31449964 is an abundant number, since it is smaller than the sum of its proper divisors (37503620).

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

31449964 is a wasteful number, since it uses less digits than its factorization.

31449964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374 (or 12365 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 31449964 is about 5608.0267474398. The cubic root of 31449964 is about 315.6506714930.

The spelling of 31449964 in words is "thirty-one million, four hundred forty-nine thousand, nine hundred sixty-four".