20344746 has 32 divisors (see below), whose sum is σ = 42211008. Its totient is φ = 6531840.

The previous prime is 20344703. The next prime is 20344759. The reversal of 20344746 is 64744302.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24681 + ... + 25491.

It is an arithmetic number, because the mean of its divisors is an integer number (1319094).

Almost surely, 2^20344746 is an apocalyptic number.

20344746 is an abundant number, since it is smaller than the sum of its proper divisors (21866262).

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

20344746 is a wasteful number, since it uses less digits than its factorization.

20344746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 20344746 is about 4510.5150481957. The cubic root of 20344746 is about 272.9925261945.

The spelling of 20344746 in words is "twenty million, three hundred forty-four thousand, seven hundred forty-six".