140464040 has 16 divisors (see below), whose sum is σ = 316044180. Its totient is φ = 56185600.

The previous prime is 140464039. The next prime is 140464043. The reversal of 140464040 is 40464041.

It can be written as a sum of positive squares in 2 ways, for example, as 134884996 + 5579044 = 11614^2 + 2362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140463997 and 140464015.

It is not an unprimeable number, because it can be changed into a prime (140464043) 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, 1755761 + ... + 1755840.

Almost surely, 2^140464040 is an apocalyptic number.

140464040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140464040 is an abundant number, since it is smaller than the sum of its proper divisors (175580140).

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

140464040 is a wasteful number, since it uses less digits than its factorization.

140464040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511612 (or 3511608 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 140464040 is about 11851.7526130104. The cubic root of 140464040 is about 519.8224739169.

Subtracting from 140464040 its reverse (40464041), we obtain a palindrome (99999999).

The spelling of 140464040 in words is "one hundred forty million, four hundred sixty-four thousand, forty".