140863928 has 8 divisors (see below), whose sum is σ = 264119880. Its totient is φ = 70431960.

The previous prime is 140863913. The next prime is 140863951. The reversal of 140863928 is 829368041.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 8803988 + ... + 8804003.

It is an arithmetic number, because the mean of its divisors is an integer number (33014985).

Almost surely, 2^140863928 is an apocalyptic number.

It is an amenable number.

140863928 is a deficient number, since it is larger than the sum of its proper divisors (123255952).

140863928 is a wasteful number, since it uses less digits than its factorization.

140863928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607997 (or 17607993 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 140863928 is about 11868.6110392076. The cubic root of 140863928 is about 520.3153018748.

The spelling of 140863928 in words is "one hundred forty million, eight hundred sixty-three thousand, nine hundred twenty-eight".