139628800 has 54 divisors (see below), whose sum is σ = 345618938. Its totient is φ = 55848960.

The previous prime is 139628773. The next prime is 139628833. The reversal of 139628800 is 8826931.

It can be written as a sum of positive squares in 3 ways, for example, as 15618304 + 124010496 = 3952^2 + 11136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139628800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4509 + ... + 17308.

Almost surely, 2^139628800 is an apocalyptic number.

139628800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139628800 is an abundant number, since it is smaller than the sum of its proper divisors (205990138).

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

139628800 is an equidigital number, since it uses as much as digits as its factorization.

139628800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843 (or 21824 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 139628800 is about 11816.4630918054. The cubic root of 139628800 is about 518.7900864169.

The spelling of 139628800 in words is "one hundred thirty-nine million, six hundred twenty-eight thousand, eight hundred".