252442332 has 120 divisors (see below), whose sum is σ = 694607760. Its totient is φ = 79833600.

The previous prime is 252442321. The next prime is 252442343. The reversal of 252442332 is 233244252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252442321) and next prime (252442343).

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

It is a junction number, because it is equal to n+sod(n) for n = 252442296 and 252442305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 629332 + ... + 629732.

It is an arithmetic number, because the mean of its divisors is an integer number (5788398).

Almost surely, 2^252442332 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 252442332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347303880).

252442332 is an abundant number, since it is smaller than the sum of its proper divisors (442165428).

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

252442332 is a wasteful number, since it uses less digits than its factorization.

252442332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 502 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 252442332 is about 15888.4339064616. The cubic root of 252442332 is about 632.0053109365.

Adding to 252442332 its reverse (233244252), we get a palindrome (485686584).

The spelling of 252442332 in words is "two hundred fifty-two million, four hundred forty-two thousand, three hundred thirty-two".