20364072 has 32 divisors (see below), whose sum is σ = 51040800. Its totient is φ = 6770624.

The previous prime is 20364037. The next prime is 20364073. The reversal of 20364072 is 27046302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20364073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11383 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (1595025).

Almost surely, 2^20364072 is an apocalyptic number.

It is an amenable number.

20364072 is an abundant number, since it is smaller than the sum of its proper divisors (30676728).

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

20364072 is a wasteful number, since it uses less digits than its factorization.

20364072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20364072 is about 4512.6568670795. The cubic root of 20364072 is about 273.0789397234.

The spelling of 20364072 in words is "twenty million, three hundred sixty-four thousand, seventy-two".