28331496 has 48 divisors (see below), whose sum is σ = 78524160. Its totient is φ = 9223200.

The previous prime is 28331491. The next prime is 28331497. The reversal of 28331496 is 69413382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28331496.

It is not an unprimeable number, because it can be changed into a prime (28331491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1480 + ... + 7671.

It is an arithmetic number, because the mean of its divisors is an integer number (1635920).

Almost surely, 2^28331496 is an apocalyptic number.

It is an amenable number.

28331496 is an abundant number, since it is smaller than the sum of its proper divisors (50192664).

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

28331496 is a wasteful number, since it uses less digits than its factorization.

28331496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206 (or 9199 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 28331496 is about 5322.7338840111. The cubic root of 28331496 is about 304.8525525770.

The spelling of 28331496 in words is "twenty-eight million, three hundred thirty-one thousand, four hundred ninety-six".