20769748 has 24 divisors (see below), whose sum is σ = 37001664. Its totient is φ = 10200000.

The previous prime is 20769743. The next prime is 20769751. The reversal of 20769748 is 84796702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20769743) 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, 82623 + ... + 82873.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^20769748 is an apocalyptic number.

It is an amenable number.

20769748 is a deficient number, since it is larger than the sum of its proper divisors (16231916).

20769748 is a wasteful number, since it uses less digits than its factorization.

20769748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 20769748 is about 4557.3838986857. The cubic root of 20769748 is about 274.8803799309.

The spelling of 20769748 in words is "twenty million, seven hundred sixty-nine thousand, seven hundred forty-eight".