140490032400 has 135 divisors (see below), whose sum is σ = 487617493701. Its totient is φ = 37458011520.

The previous prime is 140490032383. The next prime is 140490032471. The reversal of 140490032400 is 4230094041.

The square root of 140490032400 is 374820.

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

140490032400 is a `hidden beast` number, since 140 + 4 + 90 + 0 + 32 + 400 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50576411664 + 89913620736 = 224892^2 + 299856^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22486077 + ... + 22492323.

Almost surely, 2^140490032400 is an apocalyptic number.

140490032400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140490032400 is the 374820-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140490032400

140490032400 is an abundant number, since it is smaller than the sum of its proper divisors (347127461301).

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

140490032400 is an frugal number, since it uses more digits than its factorization.

140490032400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518 (or 6257 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 140490032400 in words is "one hundred forty billion, four hundred ninety million, thirty-two thousand, four hundred".