31464436 has 12 divisors (see below), whose sum is σ = 55760320. Its totient is φ = 15532920.

The previous prime is 31464427. The next prime is 31464439. The reversal of 31464436 is 63446413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31464398 and 31464407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31464439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49470 + ... + 50101.

Almost surely, 2^31464436 is an apocalyptic number.

It is an amenable number.

31464436 is a deficient number, since it is larger than the sum of its proper divisors (24295884).

31464436 is a wasteful number, since it uses less digits than its factorization.

31464436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99654 (or 99652 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 31464436 is about 5609.3168924567. The cubic root of 31464436 is about 315.6990806211.

The spelling of 31464436 in words is "thirty-one million, four hundred sixty-four thousand, four hundred thirty-six".