28730376 has 48 divisors (see below), whose sum is σ = 80698800. Its totient is φ = 9576144.

The previous prime is 28730371. The next prime is 28730417. The reversal of 28730376 is 67303782.

28730376 is a `hidden beast` number, since 287 + 3 + 0 + 376 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28730376.

It is not an unprimeable number, because it can be changed into a prime (28730371) 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, 5446 + ... + 9333.

It is an arithmetic number, because the mean of its divisors is an integer number (1681225).

Almost surely, 2^28730376 is an apocalyptic number.

It is an amenable number.

28730376 is an abundant number, since it is smaller than the sum of its proper divisors (51968424).

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

28730376 is a wasteful number, since it uses less digits than its factorization.

28730376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800 (or 14784 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 28730376 is about 5360.0723875709. The cubic root of 28730376 is about 306.2765665694.

It can be divided in two parts, 2 and 8730376, that added together give a palindrome (8730378).

The spelling of 28730376 in words is "twenty-eight million, seven hundred thirty thousand, three hundred seventy-six".