28342395904 has 33 divisors (see below), whose sum is σ = 56667885001. Its totient is φ = 14168504320.

The previous prime is 28342395899. The next prime is 28342395923. The reversal of 28342395904 is 40959324382.

The square root of 28342395904 is 168352.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21096981504 + 7245414400 = 145248^2 + 85120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5384634 + ... + 5389894.

Almost surely, 2^28342395904 is an apocalyptic number.

28342395904 is the 168352-nd square number.

It is an amenable number.

28342395904 is a deficient number, since it is larger than the sum of its proper divisors (28325489097).

28342395904 is an frugal number, since it uses more digits than its factorization.

28342395904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542 (or 5263 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

Multiplying 28342395904 by its sum of digits (49), we get a square (1388777399296 = 1178464²).

The spelling of 28342395904 in words is "twenty-eight billion, three hundred forty-two million, three hundred ninety-five thousand, nine hundred four".