18148928 has 56 divisors (see below), whose sum is σ = 43598592. Its totient is φ = 7317504.

The previous prime is 18148901. The next prime is 18148939. The reversal of 18148928 is 82984181.

It is a tau number, because it is divible by the number of its divisors (56).

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, 6425 + ... + 8807.

Almost surely, 2^18148928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18148928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21799296).

18148928 is an abundant number, since it is smaller than the sum of its proper divisors (25449664).

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

18148928 is a wasteful number, since it uses less digits than its factorization.

18148928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2409 counting only the distinct ones).

The product of its digits is 36864, while the sum is 41.

The square root of 18148928 is about 4260.1558656932. The cubic root of 18148928 is about 262.7949362203.

The spelling of 18148928 in words is "eighteen million, one hundred forty-eight thousand, nine hundred twenty-eight".