140844040 has 16 divisors (see below), whose sum is σ = 316899180. Its totient is φ = 56337600.

The previous prime is 140844029. The next prime is 140844079. The reversal of 140844040 is 40448041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 129914404 + 10929636 = 11398^2 + 3306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140843996 and 140844014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760511 + ... + 1760590.

Almost surely, 2^140844040 is an apocalyptic number.

140844040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140844040 is an abundant number, since it is smaller than the sum of its proper divisors (176055140).

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

140844040 is a wasteful number, since it uses less digits than its factorization.

140844040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521112 (or 3521108 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 140844040 is about 11867.7731693861. The cubic root of 140844040 is about 520.2908136615.

The spelling of 140844040 in words is "one hundred forty million, eight hundred forty-four thousand, forty".