140428139408 has 40 divisors (see below), whose sum is σ = 277273324800. Its totient is φ = 68874309504.

The previous prime is 140428139399. The next prime is 140428139431. The reversal of 140428139408 is 804931824041.

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, 4580033 + ... + 4610591.

It is an arithmetic number, because the mean of its divisors is an integer number (6931833120).

Almost surely, 2^140428139408 is an apocalyptic number.

It is an amenable number.

140428139408 is a deficient number, since it is larger than the sum of its proper divisors (136845185392).

140428139408 is a wasteful number, since it uses less digits than its factorization.

140428139408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36039 (or 36033 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 140428139408 in words is "one hundred forty billion, four hundred twenty-eight million, one hundred thirty-nine thousand, four hundred eight".