20169330 has 16 divisors (see below), whose sum is σ = 48406464. Its totient is φ = 5378480.

The previous prime is 20169323. The next prime is 20169349. The reversal of 20169330 is 3396102.

20169330 is nontrivially palindromic in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 20169330.

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, 336126 + ... + 336185.

It is an arithmetic number, because the mean of its divisors is an integer number (3025404).

Almost surely, 2^20169330 is an apocalyptic number.

20169330 is an abundant number, since it is smaller than the sum of its proper divisors (28237134).

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

20169330 is a wasteful number, since it uses less digits than its factorization.

20169330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672321.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 20169330 is about 4491.0277220253. The cubic root of 20169330 is about 272.2056637313.

The spelling of 20169330 in words is "twenty million, one hundred sixty-nine thousand, three hundred thirty".