20233992 has 32 divisors (see below), whose sum is σ = 51821280. Its totient is φ = 6579840.

The previous prime is 20233957. The next prime is 20233999. The reversal of 20233992 is 29933202.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20233999) 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, 9298 + ... + 11265.

It is an arithmetic number, because the mean of its divisors is an integer number (1619415).

Almost surely, 2^20233992 is an apocalyptic number.

It is an amenable number.

20233992 is an abundant number, since it is smaller than the sum of its proper divisors (31587288).

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

20233992 is a wasteful number, since it uses less digits than its factorization.

20233992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613 (or 20609 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 20233992 is about 4498.2209816771. The cubic root of 20233992 is about 272.4962466167.

The spelling of 20233992 in words is "twenty million, two hundred thirty-three thousand, nine hundred ninety-two".