252332421 has 8 divisors (see below), whose sum is σ = 367029024. Its totient is φ = 152928720.

The previous prime is 252332419. The next prime is 252332447. The reversal of 252332421 is 124233252.

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

It is not a de Polignac number, because 252332421 - 2¹ = 252332419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252332391 and 252332400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252332401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3823186 + ... + 3823251.

It is an arithmetic number, because the mean of its divisors is an integer number (45878628).

Almost surely, 2^252332421 is an apocalyptic number.

It is an amenable number.

252332421 is a deficient number, since it is larger than the sum of its proper divisors (114696603).

252332421 is a wasteful number, since it uses less digits than its factorization.

252332421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646451.

The product of its digits is 2880, while the sum is 24.

The square root of 252332421 is about 15884.9746930865. The cubic root of 252332421 is about 631.9135745797.

Adding to 252332421 its reverse (124233252), we get a palindrome (376565673).

The spelling of 252332421 in words is "two hundred fifty-two million, three hundred thirty-two thousand, four hundred twenty-one".