149394728 has 48 divisors (see below), whose sum is σ = 333463680. Its totient is φ = 62530272.

The previous prime is 149394709. The next prime is 149394733. The reversal of 149394728 is 827493941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12425 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (6947160).

Almost surely, 2^149394728 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 149394728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166731840).

149394728 is an abundant number, since it is smaller than the sum of its proper divisors (184068952).

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

149394728 is a wasteful number, since it uses less digits than its factorization.

149394728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926 (or 8915 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 149394728 is about 12222.7136103240. The cubic root of 149394728 is about 530.6136573089.

The spelling of 149394728 in words is "one hundred forty-nine million, three hundred ninety-four thousand, seven hundred twenty-eight".