28374816 has 24 divisors (see below), whose sum is σ = 74484144. Its totient is φ = 9458240.

The previous prime is 28374791. The next prime is 28374817. The reversal of 28374816 is 61847382.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (28374817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147690 + ... + 147881.

It is an arithmetic number, because the mean of its divisors is an integer number (3103506).

Almost surely, 2^28374816 is an apocalyptic number.

It is an amenable number.

28374816 is an abundant number, since it is smaller than the sum of its proper divisors (46109328).

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

28374816 is a wasteful number, since it uses less digits than its factorization.

28374816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295584 (or 295576 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 28374816 is about 5326.8016670419. The cubic root of 28374816 is about 305.0078507340.

The spelling of 28374816 in words is "twenty-eight million, three hundred seventy-four thousand, eight hundred sixteen".