140608840 has 32 divisors (see below), whose sum is σ = 317115000. Its totient is φ = 56111104.

The previous prime is 140608817. The next prime is 140608879. The reversal of 140608840 is 48806041.

It can be written as a sum of positive squares in 4 ways, for example, as 93741124 + 46867716 = 9682^2 + 6846^2 .

It is a super-2 number, since 2×140608840² = 39541691772291200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14046 + ... + 21874.

Almost surely, 2^140608840 is an apocalyptic number.

140608840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140608840 is an abundant number, since it is smaller than the sum of its proper divisors (176506160).

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

140608840 is a wasteful number, since it uses less digits than its factorization.

140608840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289 (or 8285 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 140608840 is about 11857.8598406289. The cubic root of 140608840 is about 520.0010355009.

The spelling of 140608840 in words is "one hundred forty million, six hundred eight thousand, eight hundred forty".