20242152 has 48 divisors (see below), whose sum is σ = 62655840. Its totient is φ = 5783328.

The previous prime is 20242129. The next prime is 20242169. The reversal of 20242152 is 25124202.

It is a super-2 number, since 2×20242152² = 819489435182208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19578 + ... + 20585.

It is an arithmetic number, because the mean of its divisors is an integer number (1305330).

Almost surely, 2^20242152 is an apocalyptic number.

It is an amenable number.

20242152 is an abundant number, since it is smaller than the sum of its proper divisors (42413688).

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

20242152 is a wasteful number, since it uses less digits than its factorization.

20242152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40182 (or 40175 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20242152 is about 4499.1279154965. The cubic root of 20242152 is about 272.5328726160.

Adding to 20242152 its reverse (25124202), we get a palindrome (45366354).

The spelling of 20242152 in words is "twenty million, two hundred forty-two thousand, one hundred fifty-two".