140644828 has 24 divisors (see below), whose sum is σ = 253825488. Its totient is φ = 68155776.

The previous prime is 140644817. The next prime is 140644843. The reversal of 140644828 is 828446041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13600 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (10576062).

Almost surely, 2^140644828 is an apocalyptic number.

It is an amenable number.

140644828 is a deficient number, since it is larger than the sum of its proper divisors (113180660).

140644828 is a wasteful number, since it uses less digits than its factorization.

140644828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133 (or 8131 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 140644828 is about 11859.3772180499. The cubic root of 140644828 is about 520.0453954452.

The spelling of 140644828 in words is "one hundred forty million, six hundred forty-four thousand, eight hundred twenty-eight".