20672300 has 36 divisors (see below), whose sum is σ = 48939576. Its totient is φ = 7516800.

The previous prime is 20672299. The next prime is 20672321. The reversal of 20672300 is 327602.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8297 + ... + 10496.

Almost surely, 2^20672300 is an apocalyptic number.

20672300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20672300 is an abundant number, since it is smaller than the sum of its proper divisors (28267276).

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

20672300 is a wasteful number, since it uses less digits than its factorization.

20672300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818 (or 18811 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20672300 is about 4546.6801075070. The cubic root of 20672300 is about 274.4498090611.

Adding to 20672300 its reverse (327602), we get a palindrome (20999902).

The spelling of 20672300 in words is "twenty million, six hundred seventy-two thousand, three hundred".