140633964 has 36 divisors (see below), whose sum is σ = 363059424. Its totient is φ = 45880032.

The previous prime is 140633959. The next prime is 140633971. The reversal of 140633964 is 469336041.

140633964 is a `hidden beast` number, since 14 + 0 + 633 + 9 + 6 + 4 = 666.

140633964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39867 + ... + 43250.

It is an arithmetic number, because the mean of its divisors is an integer number (10084984).

Almost surely, 2^140633964 is an apocalyptic number.

It is an amenable number.

140633964 is an abundant number, since it is smaller than the sum of its proper divisors (222425460).

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

140633964 is a wasteful number, since it uses less digits than its factorization.

140633964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83174 (or 83169 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 140633964 is about 11858.9191750345. The cubic root of 140633964 is about 520.0320049335.

The spelling of 140633964 in words is "one hundred forty million, six hundred thirty-three thousand, nine hundred sixty-four".