20231804 has 24 divisors (see below), whose sum is σ = 36177120. Its totient is φ = 9897984.

The previous prime is 20231791. The next prime is 20231807. The reversal of 20231804 is 40813202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231807) 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, 56177 + ... + 56535.

It is an arithmetic number, because the mean of its divisors is an integer number (1507380).

Almost surely, 2^20231804 is an apocalyptic number.

It is an amenable number.

20231804 is a deficient number, since it is larger than the sum of its proper divisors (15945316).

20231804 is a wasteful number, since it uses less digits than its factorization.

20231804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20231804 is about 4497.9777678419. The cubic root of 20231804 is about 272.4864241476.

The spelling of 20231804 in words is "twenty million, two hundred thirty-one thousand, eight hundred four".