140452740 has 72 divisors (see below), whose sum is σ = 437575320. Its totient is φ = 36440064.

The previous prime is 140452733. The next prime is 140452751. The reversal of 140452740 is 47254041.

140452740 is a `hidden beast` number, since 140 + 452 + 74 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 84382596 + 56070144 = 9186^2 + 7488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3885 + ... + 17204.

It is an arithmetic number, because the mean of its divisors is an integer number (6077435).

Almost surely, 2^140452740 is an apocalyptic number.

140452740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140452740 is an abundant number, since it is smaller than the sum of its proper divisors (297122580).

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

140452740 is a wasteful number, since it uses less digits than its factorization.

140452740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21141 (or 21136 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 140452740 is about 11851.2758806805. The cubic root of 140452740 is about 519.8085340467.

The spelling of 140452740 in words is "one hundred forty million, four hundred fifty-two thousand, seven hundred forty".