20273100 has 36 divisors (see below), whose sum is σ = 58657704. Its totient is φ = 5406080.

The previous prime is 20273093. The next prime is 20273111. The reversal of 20273100 is 137202.

It is a super-2 number, since 2×20273100² = 821997167220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20273100.

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, 33489 + ... + 34088.

Almost surely, 2^20273100 is an apocalyptic number.

20273100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20273100 is an abundant number, since it is smaller than the sum of its proper divisors (38384604).

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

20273100 is a wasteful number, since it uses less digits than its factorization.

20273100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67594 (or 67587 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20273100 is about 4502.5659351086. The cubic root of 20273100 is about 272.6716927143.

The spelling of 20273100 in words is "twenty million, two hundred seventy-three thousand, one hundred".