18948936 has 32 divisors (see below), whose sum is σ = 48902400. Its totient is φ = 6112320.

The previous prime is 18948907. The next prime is 18948949. The reversal of 18948936 is 63984981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11991 + ... + 13478.

It is an arithmetic number, because the mean of its divisors is an integer number (1528200).

Almost surely, 2^18948936 is an apocalyptic number.

It is an amenable number.

18948936 is an abundant number, since it is smaller than the sum of its proper divisors (29953464).

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

18948936 is a wasteful number, since it uses less digits than its factorization.

18948936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25509 (or 25505 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 18948936 is about 4353.0375601412. The cubic root of 18948936 is about 266.6008990589.

The spelling of 18948936 in words is "eighteen million, nine hundred forty-eight thousand, nine hundred thirty-six".