20165332 has 24 divisors (see below), whose sum is σ = 40763520. Its totient is φ = 8626560.

The previous prime is 20165309. The next prime is 20165339. The reversal of 20165332 is 23356102.

It is a super-2 number, since 2×20165332² = 813281229340448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165339) 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, 12732 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (1698480).

Almost surely, 2^20165332 is an apocalyptic number.

20165332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20165332 is an abundant number, since it is smaller than the sum of its proper divisors (20598188).

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

20165332 is a wasteful number, since it uses less digits than its factorization.

20165332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26991 (or 26989 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20165332 is about 4490.5825902660. The cubic root of 20165332 is about 272.1876768479.

The spelling of 20165332 in words is "twenty million, one hundred sixty-five thousand, three hundred thirty-two".