20364900 has 36 divisors (see below), whose sum is σ = 58923312. Its totient is φ = 5430560.

The previous prime is 20364893. The next prime is 20364901. The reversal of 20364900 is 946302.

It is not an unprimeable number, because it can be changed into a prime (20364901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33642 + ... + 34241.

Almost surely, 2^20364900 is an apocalyptic number.

20364900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20364900 is an abundant number, since it is smaller than the sum of its proper divisors (38558412).

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

20364900 is a wasteful number, since it uses less digits than its factorization.

20364900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67900 (or 67893 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20364900 is about 4512.7486081101. The cubic root of 20364900 is about 273.0826407889.

The spelling of 20364900 in words is "twenty million, three hundred sixty-four thousand, nine hundred".