20670954 has 16 divisors (see below), whose sum is σ = 42122592. Its totient is φ = 6760208.

The previous prime is 20670943. The next prime is 20670959. The reversal of 20670954 is 45907602.

It is not an unprimeable number, because it can be changed into a prime (20670959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32184 + ... + 32819.

It is an arithmetic number, because the mean of its divisors is an integer number (2632662).

Almost surely, 2^20670954 is an apocalyptic number.

20670954 is an abundant number, since it is smaller than the sum of its proper divisors (21451638).

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

20670954 is a wasteful number, since it uses less digits than its factorization.

20670954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65061.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20670954 is about 4546.5320850072. The cubic root of 20670954 is about 274.4438523387.

The spelling of 20670954 in words is "twenty million, six hundred seventy thousand, nine hundred fifty-four".