31076228 has 6 divisors (see below), whose sum is σ = 54383406. Its totient is φ = 15538112.

The previous prime is 31076209. The next prime is 31076231. The reversal of 31076228 is 82267013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20720704 + 10355524 = 4552^2 + 3218^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31076228.

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, 3884525 + ... + 3884532.

It is an arithmetic number, because the mean of its divisors is an integer number (9063901).

Almost surely, 2^31076228 is an apocalyptic number.

It is an amenable number.

31076228 is a deficient number, since it is larger than the sum of its proper divisors (23307178).

31076228 is a wasteful number, since it uses less digits than its factorization.

31076228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769061 (or 7769059 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 31076228 is about 5574.6056362760. The cubic root of 31076228 is about 314.3953396008.

The spelling of 31076228 in words is "thirty-one million, seventy-six thousand, two hundred twenty-eight".