20152732 has 24 divisors (see below), whose sum is σ = 36105552. Its totient is φ = 9840000.

The previous prime is 20152703. The next prime is 20152739. The reversal of 20152732 is 23725102.

It is a super-2 number, since 2×20152732² = 812265214127648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33232 + ... + 33832.

It is an arithmetic number, because the mean of its divisors is an integer number (1504398).

Almost surely, 2^20152732 is an apocalyptic number.

It is an amenable number.

20152732 is a deficient number, since it is larger than the sum of its proper divisors (15952820).

20152732 is a wasteful number, since it uses less digits than its factorization.

20152732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20152732 is about 4489.1794350416. The cubic root of 20152732 is about 272.1309742642.

Adding to 20152732 its reverse (23725102), we get a palindrome (43877834).

The spelling of 20152732 in words is "twenty million, one hundred fifty-two thousand, seven hundred thirty-two".