140591400 has 48 divisors (see below), whose sum is σ = 435835200. Its totient is φ = 37490880.

The previous prime is 140591383. The next prime is 140591401. The reversal of 140591400 is 4195041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (140591401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116560 + ... + 117759.

It is an arithmetic number, because the mean of its divisors is an integer number (9079900).

Almost surely, 2^140591400 is an apocalyptic number.

140591400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140591400 is an abundant number, since it is smaller than the sum of its proper divisors (295243800).

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

140591400 is a wasteful number, since it uses less digits than its factorization.

140591400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234338 (or 234329 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 140591400 is about 11857.1244406053. The cubic root of 140591400 is about 519.9795356838.

The spelling of 140591400 in words is "one hundred forty million, five hundred ninety-one thousand, four hundred".