28456374 has 32 divisors (see below), whose sum is σ = 58634496. Its totient is φ = 9203040.

The previous prime is 28456369. The next prime is 28456381. The reversal of 28456374 is 47365482.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28044 + ... + 29040.

It is an arithmetic number, because the mean of its divisors is an integer number (1832328).

Almost surely, 2^28456374 is an apocalyptic number.

28456374 is an abundant number, since it is smaller than the sum of its proper divisors (30178122).

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

28456374 is a wasteful number, since it uses less digits than its factorization.

28456374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its digits is 161280, while the sum is 39.

The square root of 28456374 is about 5334.4516119279. The cubic root of 28456374 is about 305.2998001710.

The spelling of 28456374 in words is "twenty-eight million, four hundred fifty-six thousand, three hundred seventy-four".