252397260 has 144 divisors (see below), whose sum is σ = 788616192. Its totient is φ = 65318400.

The previous prime is 252397247. The next prime is 252397267. The reversal of 252397260 is 62793252.

252397260 is a `hidden beast` number, since 2 + 5 + 2 + 397 + 260 = 666.

252397260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (252397267) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1394370 + ... + 1394550.

Almost surely, 2^252397260 is an apocalyptic number.

252397260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252397260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394308096).

252397260 is an abundant number, since it is smaller than the sum of its proper divisors (536218932).

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

252397260 is a wasteful number, since it uses less digits than its factorization.

252397260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 252397260 is about 15887.0154528785. The cubic root of 252397260 is about 631.9676951655.

The spelling of 252397260 in words is "two hundred fifty-two million, three hundred ninety-seven thousand, two hundred sixty".