140038864 has 30 divisors (see below), whose sum is σ = 315625074. Its totient is φ = 60016320.

The previous prime is 140038837. The next prime is 140038889. The reversal of 140038864 is 468830041.

It can be written as a sum of positive squares in only one way, i.e., 134374464 + 5664400 = 11592^2 + 2380^2 .

It is a super-2 number, since 2×140038864² = 39221766860820992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 5 ways as a sum of consecutive naturals, for example, 88527 + ... + 90094.

Almost surely, 2^140038864 is an apocalyptic number.

140038864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140038864 is an abundant number, since it is smaller than the sum of its proper divisors (175586210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140038864 is a wasteful number, since it uses less digits than its factorization.

140038864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178643 (or 178630 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 140038864 is about 11833.8017559870. The cubic root of 140038864 is about 519.2974536185.

The spelling of 140038864 in words is "one hundred forty million, thirty-eight thousand, eight hundred sixty-four".