20757048 has 32 divisors (see below), whose sum is σ = 55885200. Its totient is φ = 6386688.

The previous prime is 20757047. The next prime is 20757049. The reversal of 20757048 is 84075702.

It is an interprime number because it is at equal distance from previous prime (20757047) and next prime (20757049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20757043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32953 + ... + 33576.

Almost surely, 2^20757048 is an apocalyptic number.

It is an amenable number.

20757048 is an abundant number, since it is smaller than the sum of its proper divisors (35128152).

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

20757048 is a wasteful number, since it uses less digits than its factorization.

20757048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66551 (or 66547 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 20757048 is about 4555.9903423954. The cubic root of 20757048 is about 274.8243418155.

The spelling of 20757048 in words is "twenty million, seven hundred fifty-seven thousand, forty-eight".