20750732 has 6 divisors (see below), whose sum is σ = 36313788. Its totient is φ = 10375364.

The previous prime is 20750701. The next prime is 20750767. The reversal of 20750732 is 23705702.

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 as a sum of consecutive naturals, namely, 2593838 + ... + 2593845.

It is an arithmetic number, because the mean of its divisors is an integer number (6052298).

Almost surely, 2^20750732 is an apocalyptic number.

It is an amenable number.

20750732 is a deficient number, since it is larger than the sum of its proper divisors (15563056).

20750732 is a wasteful number, since it uses less digits than its factorization.

20750732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187687 (or 5187685 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20750732 is about 4555.2971363019. The cubic root of 20750732 is about 274.7964642703.

The spelling of 20750732 in words is "twenty million, seven hundred fifty thousand, seven hundred thirty-two".