20748548 has 24 divisors (see below), whose sum is σ = 37766400. Its totient is φ = 9963360.

The previous prime is 20748547. The next prime is 20748557. The reversal of 20748548 is 84584702.

It is not an unprimeable number, because it can be changed into a prime (20748547) 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, 17915 + ... + 19037.

It is an arithmetic number, because the mean of its divisors is an integer number (1573600).

Almost surely, 2^20748548 is an apocalyptic number.

It is an amenable number.

20748548 is a deficient number, since it is larger than the sum of its proper divisors (17017852).

20748548 is a wasteful number, since it uses less digits than its factorization.

20748548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 20748548 is about 4555.0574090784. The cubic root of 20748548 is about 274.7868232203.

The spelling of 20748548 in words is "twenty million, seven hundred forty-eight thousand, five hundred forty-eight".