148009728 has 54 divisors (see below), whose sum is σ = 394821084. Its totient is φ = 49224192.

The previous prime is 148009711. The next prime is 148009751. The reversal of 148009728 is 827900841.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336933 + ... + 337371.

Almost surely, 2^148009728 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 148009728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197410542).

148009728 is an abundant number, since it is smaller than the sum of its proper divisors (246811356).

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

148009728 is an frugal number, since it uses more digits than its factorization.

148009728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 148009728 is about 12165.9248723638. The cubic root of 148009728 is about 528.9688364211.

The spelling of 148009728 in words is "one hundred forty-eight million, nine thousand, seven hundred twenty-eight".