140434668 has 48 divisors (see below), whose sum is σ = 397192320. Its totient is φ = 42555600.

The previous prime is 140434631. The next prime is 140434669. The reversal of 140434668 is 866434041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140434669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57918 + ... + 60293.

It is an arithmetic number, because the mean of its divisors is an integer number (8274840).

Almost surely, 2^140434668 is an apocalyptic number.

140434668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140434668 is an abundant number, since it is smaller than the sum of its proper divisors (256757652).

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

140434668 is a wasteful number, since it uses less digits than its factorization.

140434668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118235 (or 118227 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 140434668 is about 11850.5134065997. The cubic root of 140434668 is about 519.7862385690.

The spelling of 140434668 in words is "one hundred forty million, four hundred thirty-four thousand, six hundred sixty-eight".