20273204 has 24 divisors (see below), whose sum is σ = 41946240. Its totient is φ = 8388576.

The previous prime is 20273203. The next prime is 20273207. The reversal of 20273204 is 40237202.

It is a happy number.

It is a super-2 number, since 2×20273204² = 822005600851232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11672 + ... + 13295.

It is an arithmetic number, because the mean of its divisors is an integer number (1747760).

Almost surely, 2^20273204 is an apocalyptic number.

It is an amenable number.

20273204 is an abundant number, since it is smaller than the sum of its proper divisors (21673036).

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

20273204 is a wasteful number, since it uses less digits than its factorization.

20273204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25007 (or 25005 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20273204 is about 4502.5774840640. The cubic root of 20273204 is about 272.6721589776.

The spelling of 20273204 in words is "twenty million, two hundred seventy-three thousand, two hundred four".