140423764 has 24 divisors (see below), whose sum is σ = 268002560. Its totient is φ = 63988704.

The previous prime is 140423743. The next prime is 140423779. The reversal of 140423764 is 467324041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12984 + ... + 21199.

Almost surely, 2^140423764 is an apocalyptic number.

It is an amenable number.

140423764 is a deficient number, since it is larger than the sum of its proper divisors (127578796).

140423764 is a wasteful number, since it uses less digits than its factorization.

140423764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34279 (or 34277 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 140423764 is about 11850.0533332133. The cubic root of 140423764 is about 519.7727853481.

The spelling of 140423764 in words is "one hundred forty million, four hundred twenty-three thousand, seven hundred sixty-four".