252895140 has 36 divisors (see below), whose sum is σ = 767115804. Its totient is φ = 67438656.

The previous prime is 252895127. The next prime is 252895147. The reversal of 252895140 is 41598252.

252895140 is a `hidden beast` number, since 2 + 528 + 95 + 1 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 153214884 + 99680256 = 12378^2 + 9984^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 252895095 and 252895104.

It is not an unprimeable number, because it can be changed into a prime (252895147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702307 + ... + 702666.

Almost surely, 2^252895140 is an apocalyptic number.

252895140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252895140 is an abundant number, since it is smaller than the sum of its proper divisors (514220664).

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

252895140 is a wasteful number, since it uses less digits than its factorization.

252895140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404988 (or 1404983 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 252895140 is about 15902.6771331119. The cubic root of 252895140 is about 632.3829630294.

The spelling of 252895140 in words is "two hundred fifty-two million, eight hundred ninety-five thousand, one hundred forty".