140297938 has 16 divisors (see below), whose sum is σ = 241662240. Its totient is φ = 60415200.

The previous prime is 140297903. The next prime is 140297939. The reversal of 140297938 is 839792041.

It is a super-2 number, since 2×140297938² = 39367022814103688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140297894 and 140297903.

It is not an unprimeable number, because it can be changed into a prime (140297939) by changing a digit.

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, 167403 + ... + 168238.

It is an arithmetic number, because the mean of its divisors is an integer number (15103890).

Almost surely, 2^140297938 is an apocalyptic number.

140297938 is a deficient number, since it is larger than the sum of its proper divisors (101364302).

140297938 is a wasteful number, since it uses less digits than its factorization.

140297938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335673.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 140297938 is about 11844.7430533549. The cubic root of 140297938 is about 519.6174923682.

The spelling of 140297938 in words is "one hundred forty million, two hundred ninety-seven thousand, nine hundred thirty-eight".