28375480 has 32 divisors (see below), whose sum is σ = 72966240. Its totient is φ = 9728640.

The previous prime is 28375469. The next prime is 28375513. The reversal of 28375480 is 8457382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50391 + ... + 50950.

It is an arithmetic number, because the mean of its divisors is an integer number (2280195).

Almost surely, 2^28375480 is an apocalyptic number.

28375480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28375480 is an abundant number, since it is smaller than the sum of its proper divisors (44590760).

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

28375480 is a wasteful number, since it uses less digits than its factorization.

28375480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101359 (or 101355 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 28375480 is about 5326.8639930075. The cubic root of 28375480 is about 305.0102298817.

The spelling of 28375480 in words is "twenty-eight million, three hundred seventy-five thousand, four hundred eighty".