31420204 has 12 divisors (see below), whose sum is σ = 55603800. Its totient is φ = 15533408.

The previous prime is 31420189. The next prime is 31420217. The reversal of 31420204 is 40202413.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43774 + ... + 44485.

It is an arithmetic number, because the mean of its divisors is an integer number (4633650).

Almost surely, 2^31420204 is an apocalyptic number.

It is an amenable number.

31420204 is a deficient number, since it is larger than the sum of its proper divisors (24183596).

31420204 is a wasteful number, since it uses less digits than its factorization.

31420204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88352 (or 88350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 31420204 is about 5605.3727797534. The cubic root of 31420204 is about 315.5510770118.

Adding to 31420204 its reverse (40202413), we get a palindrome (71622617).

The spelling of 31420204 in words is "thirty-one million, four hundred twenty thousand, two hundred four".