252837222 has 16 divisors (see below), whose sum is σ = 551644992. Its totient is φ = 76617320.

The previous prime is 252837157. The next prime is 252837223. The reversal of 252837222 is 222738252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252837223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915368 + ... + 1915499.

It is an arithmetic number, because the mean of its divisors is an integer number (34477812).

Almost surely, 2^252837222 is an apocalyptic number.

252837222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252837222 is an abundant number, since it is smaller than the sum of its proper divisors (298807770).

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

252837222 is a wasteful number, since it uses less digits than its factorization.

252837222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830883.

The product of its digits is 26880, while the sum is 33.

The square root of 252837222 is about 15900.8560146930. The cubic root of 252837222 is about 632.3346832656.

The spelling of 252837222 in words is "two hundred fifty-two million, eight hundred thirty-seven thousand, two hundred twenty-two".