20242392 has 32 divisors (see below), whose sum is σ = 52807680. Its totient is φ = 6453920.

The previous prime is 20242373. The next prime is 20242433. The reversal of 20242392 is 29324202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17784 + ... + 18887.

It is an arithmetic number, because the mean of its divisors is an integer number (1650240).

Almost surely, 2^20242392 is an apocalyptic number.

It is an amenable number.

20242392 is an abundant number, since it is smaller than the sum of its proper divisors (32565288).

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

20242392 is a wasteful number, since it uses less digits than its factorization.

20242392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36703 (or 36699 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20242392 is about 4499.1545872530. The cubic root of 20242392 is about 272.5339497022.

Adding to 20242392 its reverse (29324202), we get a palindrome (49566594).

The spelling of 20242392 in words is "twenty million, two hundred forty-two thousand, three hundred ninety-two".