31469028 has 12 divisors (see below), whose sum is σ = 73427760. Its totient is φ = 10489672.

The previous prime is 31469027. The next prime is 31469033. The reversal of 31469028 is 82096413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31469028.

It is not an unprimeable number, because it can be changed into a prime (31469027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311198 + ... + 1311221.

It is an arithmetic number, because the mean of its divisors is an integer number (6118980).

Almost surely, 2^31469028 is an apocalyptic number.

It is an amenable number.

31469028 is an abundant number, since it is smaller than the sum of its proper divisors (41958732).

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

31469028 is a wasteful number, since it uses less digits than its factorization.

31469028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622426 (or 2622424 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 31469028 is about 5609.7261965269. The cubic root of 31469028 is about 315.7144378502.

The spelling of 31469028 in words is "thirty-one million, four hundred sixty-nine thousand, twenty-eight".