20342252 has 18 divisors (see below), whose sum is σ = 41411412. Its totient is φ = 8718024.

The previous prime is 20342249. The next prime is 20342269. The reversal of 20342252 is 25224302.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51698 + ... + 52089.

It is an arithmetic number, because the mean of its divisors is an integer number (2300634).

Almost surely, 2^20342252 is an apocalyptic number.

It is an amenable number.

20342252 is an abundant number, since it is smaller than the sum of its proper divisors (21069160).

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

20342252 is a wasteful number, since it uses less digits than its factorization.

20342252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103805 (or 103796 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20342252 is about 4510.2385746211. The cubic root of 20342252 is about 272.9813706332.

Adding to 20342252 its reverse (25224302), we get a palindrome (45566554).

The spelling of 20342252 in words is "twenty million, three hundred forty-two thousand, two hundred fifty-two".