20323732 has 24 divisors (see below), whose sum is σ = 41785632. Its totient is φ = 8527200.

The previous prime is 20323727. The next prime is 20323739. The reversal of 20323732 is 23732302.

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 (20323739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17194 + ... + 18337.

It is an arithmetic number, because the mean of its divisors is an integer number (1741068).

Almost surely, 2^20323732 is an apocalyptic number.

20323732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20323732 is an abundant number, since it is smaller than the sum of its proper divisors (21461900).

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

20323732 is a wasteful number, since it uses less digits than its factorization.

20323732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35559 (or 35557 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 20323732 is about 4508.1850006405. The cubic root of 20323732 is about 272.8985028825.

The spelling of 20323732 in words is "twenty million, three hundred twenty-three thousand, seven hundred thirty-two".