20164330 has 16 divisors (see below), whose sum is σ = 37874304. Its totient is φ = 7714960.

The previous prime is 20164321. The next prime is 20164349. The reversal of 20164330 is 3346102.

It is a junction number, because it is equal to n+sod(n) for n = 20164298 and 20164307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43606 + ... + 44065.

It is an arithmetic number, because the mean of its divisors is an integer number (2367144).

Almost surely, 2^20164330 is an apocalyptic number.

20164330 is a deficient number, since it is larger than the sum of its proper divisors (17709974).

20164330 is a wasteful number, since it uses less digits than its factorization.

20164330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87701.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20164330 is about 4490.4710220644. The cubic root of 20164330 is about 272.1831685071.

The spelling of 20164330 in words is "twenty million, one hundred sixty-four thousand, three hundred thirty".