31464464 has 20 divisors (see below), whose sum is σ = 61997520. Its totient is φ = 15465120.

The previous prime is 31464463. The next prime is 31464481. The reversal of 31464464 is 46446413.

It is a self number, because there is not a number n which added to its sum of digits gives 31464464.

It is not an unprimeable number, because it can be changed into a prime (31464463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15722 + ... + 17609.

It is an arithmetic number, because the mean of its divisors is an integer number (3099876).

Almost surely, 2^31464464 is an apocalyptic number.

It is an amenable number.

31464464 is a deficient number, since it is larger than the sum of its proper divisors (30533056).

31464464 is a wasteful number, since it uses less digits than its factorization.

31464464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33398 (or 33392 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 31464464 is about 5609.3193883037. The cubic root of 31464464 is about 315.6991742673.

The spelling of 31464464 in words is "thirty-one million, four hundred sixty-four thousand, four hundred sixty-four".