252247400 has 48 divisors (see below), whose sum is σ = 591152640. Its totient is φ = 100094400.

The previous prime is 252247367. The next prime is 252247421. The reversal of 252247400 is 4742252.

It is a self number, because there is not a number n which added to its sum of digits gives 252247400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20435 + ... + 30365.

It is an arithmetic number, because the mean of its divisors is an integer number (12315680).

Almost surely, 2^252247400 is an apocalyptic number.

252247400 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 252247400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295576320).

252247400 is an abundant number, since it is smaller than the sum of its proper divisors (338905240).

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

252247400 is a wasteful number, since it uses less digits than its factorization.

252247400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074 (or 10065 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 252247400 is about 15882.2983223462. The cubic root of 252247400 is about 631.8425941919.

Adding to 252247400 its reverse (4742252), we get a palindrome (256989652).

The spelling of 252247400 in words is "two hundred fifty-two million, two hundred forty-seven thousand, four hundred".