252101442 has 8 divisors (see below), whose sum is σ = 504202896. Its totient is φ = 84033812.

The previous prime is 252101431. The next prime is 252101527. The reversal of 252101442 is 244101252.

It is a sphenic number, since it is the product of 3 distinct primes.

252101442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21008448 + ... + 21008459.

It is an arithmetic number, because the mean of its divisors is an integer number (63025362).

Almost surely, 2^252101442 is an apocalyptic number.

252101442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252101442 is a wasteful number, since it uses less digits than its factorization.

252101442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42016912.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 252101442 is about 15877.7026675776. The cubic root of 252101442 is about 631.7207029128.

Adding to 252101442 its reverse (244101252), we get a palindrome (496202694).

The spelling of 252101442 in words is "two hundred fifty-two million, one hundred one thousand, four hundred forty-two".