28531962 has 48 divisors (see below), whose sum is σ = 63917568. Its totient is φ = 9192960.

The previous prime is 28531913. The next prime is 28531973. The reversal of 28531962 is 26913582.

28531962 is a `hidden beast` number, since 285 + 319 + 62 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (25920) is a multiple of the sum of its prime divisors (432).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147738 + ... + 147930.

It is an arithmetic number, because the mean of its divisors is an integer number (1331616).

Almost surely, 2^28531962 is an apocalyptic number.

28531962 is an abundant number, since it is smaller than the sum of its proper divisors (35385606).

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

28531962 is a wasteful number, since it uses less digits than its factorization.

28531962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 432 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 28531962 is about 5341.5318027697. The cubic root of 28531962 is about 305.5698814122.

The spelling of 28531962 in words is "twenty-eight million, five hundred thirty-one thousand, nine hundred sixty-two".