20339732 has 12 divisors (see below), whose sum is σ = 40679520. Its totient is φ = 8717016.

The previous prime is 20339729. The next prime is 20339741. The reversal of 20339732 is 23793302.

20339732 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20339695 and 20339704.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 363182 + ... + 363237.

It is an arithmetic number, because the mean of its divisors is an integer number (3389960).

Almost surely, 2^20339732 is an apocalyptic number.

It is an amenable number.

20339732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20339732 is a wasteful number, since it uses less digits than its factorization.

20339732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726430 (or 726428 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 20339732 is about 4509.9592015893. The cubic root of 20339732 is about 272.9700978488.

The spelling of 20339732 in words is "twenty million, three hundred thirty-nine thousand, seven hundred thirty-two".