252326340 has 144 divisors (see below), whose sum is σ = 907251072. Its totient is φ = 57666816.

The previous prime is 252326339. The next prime is 252326357. The reversal of 252326340 is 43623252.

252326340 is a `hidden beast` number, since 2 + 5 + 23 + 2 + 634 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30312 + ... + 37728.

Almost surely, 2^252326340 is an apocalyptic number.

252326340 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 252326340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453625536).

252326340 is an abundant number, since it is smaller than the sum of its proper divisors (654924732).

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

252326340 is a wasteful number, since it uses less digits than its factorization.

252326340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448 (or 7434 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 252326340 is about 15884.7832846407. The cubic root of 252326340 is about 631.9084983430.

Adding to 252326340 its reverse (43623252), we get a palindrome (295949592).

The spelling of 252326340 in words is "two hundred fifty-two million, three hundred twenty-six thousand, three hundred forty".