28413936 has 160 divisors (see below), whose sum is σ = 89190720. Its totient is φ = 8626176.

The previous prime is 28413929. The next prime is 28413941. The reversal of 28413936 is 63931482.

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 28413936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389196 + ... + 389268.

It is an arithmetic number, because the mean of its divisors is an integer number (557442).

Almost surely, 2^28413936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28413936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44595360).

28413936 is an abundant number, since it is smaller than the sum of its proper divisors (60776784).

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

28413936 is a wasteful number, since it uses less digits than its factorization.

28413936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 148 counting only the distinct ones).

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

The square root of 28413936 is about 5330.4723993282. The cubic root of 28413936 is about 305.1479565220.

The spelling of 28413936 in words is "twenty-eight million, four hundred thirteen thousand, nine hundred thirty-six".