252199816 has 96 divisors (see below), whose sum is σ = 545640480. Its totient is φ = 109105920.

The previous prime is 252199813. The next prime is 252199817. The reversal of 252199816 is 618991252.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (252199813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3038511 + ... + 3038593.

It is an arithmetic number, because the mean of its divisors is an integer number (5683755).

Almost surely, 2^252199816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252199816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272820240).

252199816 is an abundant number, since it is smaller than the sum of its proper divisors (293440664).

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

252199816 is a wasteful number, since it uses less digits than its factorization.

252199816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 212 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The square root of 252199816 is about 15880.8002317264. The cubic root of 252199816 is about 631.8028613889.

The spelling of 252199816 in words is "two hundred fifty-two million, one hundred ninety-nine thousand, eight hundred sixteen".