31029412 has 6 divisors (see below), whose sum is σ = 54301478. Its totient is φ = 15514704.

The previous prime is 31029389. The next prime is 31029431. The reversal of 31029412 is 21492013.

It can be written as a sum of positive squares in only one way, i.e., 25240576 + 5788836 = 5024^2 + 2406^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3878673 + ... + 3878680.

Almost surely, 2^31029412 is an apocalyptic number.

It is an amenable number.

31029412 is a deficient number, since it is larger than the sum of its proper divisors (23272066).

31029412 is a wasteful number, since it uses less digits than its factorization.

31029412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757357 (or 7757355 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 31029412 is about 5570.4050122051. The cubic root of 31029412 is about 314.2373825324.

The spelling of 31029412 in words is "thirty-one million, twenty-nine thousand, four hundred twelve".