31422304 has 12 divisors (see below), whose sum is σ = 61862724. Its totient is φ = 15711136.

The previous prime is 31422289. The next prime is 31422311. The reversal of 31422304 is 40322413.

It is a super-2 number, since 2×31422304² = 1974722377336832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490942 + ... + 491005.

It is an arithmetic number, because the mean of its divisors is an integer number (5155227).

Almost surely, 2^31422304 is an apocalyptic number.

It is an amenable number.

31422304 is a deficient number, since it is larger than the sum of its proper divisors (30440420).

31422304 is an equidigital number, since it uses as much as digits as its factorization.

31422304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981957 (or 981949 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 31422304 is about 5605.5600969038. The cubic root of 31422304 is about 315.5581069099.

Adding to 31422304 its reverse (40322413), we get a palindrome (71744717).

The spelling of 31422304 in words is "thirty-one million, four hundred twenty-two thousand, three hundred four".