140687904 has 48 divisors (see below), whose sum is σ = 422065728. Its totient is φ = 40196352.

The previous prime is 140687893. The next prime is 140687923. The reversal of 140687904 is 409786041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104007 + ... + 105350.

It is an arithmetic number, because the mean of its divisors is an integer number (8793036).

Almost surely, 2^140687904 is an apocalyptic number.

140687904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140687904 is an abundant number, since it is smaller than the sum of its proper divisors (281377824).

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

140687904 is a wasteful number, since it uses less digits than its factorization.

140687904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209377 (or 209369 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 140687904 is about 11861.1931946158. The cubic root of 140687904 is about 520.0984823335.

The spelling of 140687904 in words is "one hundred forty million, six hundred eighty-seven thousand, nine hundred four".