149318928 has 120 divisors (see below), whose sum is σ = 460658016. Its totient is φ = 44774400.

The previous prime is 149318879. The next prime is 149318951. The reversal of 149318928 is 829813941.

It is a super-2 number, since 2×149318928² = 44592284518138368, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169048 + ... + 169928.

Almost surely, 2^149318928 is an apocalyptic number.

149318928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149318928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230329008).

149318928 is an abundant number, since it is smaller than the sum of its proper divisors (311339088).

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

149318928 is a wasteful number, since it uses less digits than its factorization.

149318928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1004 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 149318928 is about 12219.6124324792. The cubic root of 149318928 is about 530.5239010860.

The spelling of 149318928 in words is "one hundred forty-nine million, three hundred eighteen thousand, nine hundred twenty-eight".