252622642 has 8 divisors (see below), whose sum is σ = 379839600. Its totient is φ = 126009444.

The previous prime is 252622637. The next prime is 252622649. The reversal of 252622642 is 246226252.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (252622649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149892 + ... + 151567.

It is an arithmetic number, because the mean of its divisors is an integer number (47479950).

Almost surely, 2^252622642 is an apocalyptic number.

252622642 is a deficient number, since it is larger than the sum of its proper divisors (127216958).

252622642 is a wasteful number, since it uses less digits than its factorization.

252622642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301880.

The product of its digits is 23040, while the sum is 31.

The square root of 252622642 is about 15894.1071469900. The cubic root of 252622642 is about 632.1557476135.

Adding to 252622642 its reverse (246226252), we get a palindrome (498848894).

The spelling of 252622642 in words is "two hundred fifty-two million, six hundred twenty-two thousand, six hundred forty-two".