140266928 has 20 divisors (see below), whose sum is σ = 273911040. Its totient is φ = 69580224.

The previous prime is 140266927. The next prime is 140266943. The reversal of 140266928 is 829662041.

It is a super-2 number, since 2×140266928² = 39349622181114368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 140266891 and 140266900.

It is not an unprimeable number, because it can be changed into a prime (140266921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32483 + ... + 36546.

It is an arithmetic number, because the mean of its divisors is an integer number (13695552).

Almost surely, 2^140266928 is an apocalyptic number.

It is an amenable number.

140266928 is a deficient number, since it is larger than the sum of its proper divisors (133644112).

140266928 is a wasteful number, since it uses less digits than its factorization.

140266928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69164 (or 69158 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 140266928 is about 11843.4339614826. The cubic root of 140266928 is about 519.5792059282.

The spelling of 140266928 in words is "one hundred forty million, two hundred sixty-six thousand, nine hundred twenty-eight".