149734728 has 96 divisors (see below), whose sum is σ = 476461440. Its totient is φ = 41880960.

The previous prime is 149734727. The next prime is 149734733. The reversal of 149734728 is 827437941.

It is not an unprimeable number, because it can be changed into a prime (149734721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3025 + ... + 17567.

It is an arithmetic number, because the mean of its divisors is an integer number (4963140).

Almost surely, 2^149734728 is an apocalyptic number.

149734728 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 149734728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238230720).

149734728 is an abundant number, since it is smaller than the sum of its proper divisors (326726712).

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

149734728 is a wasteful number, since it uses less digits than its factorization.

149734728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579 (or 14572 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 149734728 is about 12236.6142376067. The cubic root of 149734728 is about 531.0158847004.

It can be divided in two parts, 14973 and 4728, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 149734728 in words is "one hundred forty-nine million, seven hundred thirty-four thousand, seven hundred twenty-eight".