31464424 has 8 divisors (see below), whose sum is σ = 58995810. Its totient is φ = 15732208.

The previous prime is 31464421. The next prime is 31464427. The reversal of 31464424 is 42446413.

It is an interprime number because it is at equal distance from previous prime (31464421) and next prime (31464427).

It can be written as a sum of positive squares in only one way, i.e., 29268100 + 2196324 = 5410^2 + 1482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31464392 and 31464401.

It is not an unprimeable number, because it can be changed into a prime (31464421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1966519 + ... + 1966534.

Almost surely, 2^31464424 is an apocalyptic number.

It is an amenable number.

31464424 is a deficient number, since it is larger than the sum of its proper divisors (27531386).

31464424 is a wasteful number, since it uses less digits than its factorization.

31464424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933059 (or 3933055 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 31464424 is about 5609.3158228076. The cubic root of 31464424 is about 315.6990404870.

The spelling of 31464424 in words is "thirty-one million, four hundred sixty-four thousand, four hundred twenty-four".