20017948 has 12 divisors (see below), whose sum is σ = 35092512. Its totient is φ = 9991520.

The previous prime is 20017939. The next prime is 20017951. The reversal of 20017948 is 84971002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (2924376).

Almost surely, 2^20017948 is an apocalyptic number.

It is an amenable number.

20017948 is a deficient number, since it is larger than the sum of its proper divisors (15074564).

20017948 is a wasteful number, since it uses less digits than its factorization.

20017948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732 (or 8730 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20017948 is about 4474.1421524131. The cubic root of 20017948 is about 271.5229346618.

The spelling of 20017948 in words is "twenty million, seventeen thousand, nine hundred forty-eight".