31014228 has 48 divisors (see below), whose sum is σ = 82995584. Its totient is φ = 8830080.

The previous prime is 31014199. The next prime is 31014259. The reversal of 31014228 is 82241013.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34926 + ... + 35802.

Almost surely, 2^31014228 is an apocalyptic number.

It is an amenable number.

31014228 is an abundant number, since it is smaller than the sum of its proper divisors (51981356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31014228 is a wasteful number, since it uses less digits than its factorization.

31014228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 31014228 is about 5569.0419283751. The cubic root of 31014228 is about 314.1861176345.

The spelling of 31014228 in words is "thirty-one million, fourteen thousand, two hundred twenty-eight".