31450004 has 12 divisors (see below), whose sum is σ = 55077204. Its totient is φ = 15713664.

The previous prime is 31449991. The next prime is 31450021. The reversal of 31450004 is 40005413.

It can be written as a sum of positive squares in 2 ways, for example, as 31024900 + 425104 = 5570^2 + 652^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8042 + ... + 11294.

It is an arithmetic number, because the mean of its divisors is an integer number (4589767).

Almost surely, 2^31450004 is an apocalyptic number.

It is an amenable number.

31450004 is a deficient number, since it is larger than the sum of its proper divisors (23627200).

31450004 is a wasteful number, since it uses less digits than its factorization.

31450004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 31450004 is about 5608.0303137554. The cubic root of 31450004 is about 315.6508053142.

Adding to 31450004 its reverse (40005413), we get a palindrome (71455417).

The spelling of 31450004 in words is "thirty-one million, four hundred fifty thousand, four".