149878672 has 40 divisors (see below), whose sum is σ = 305426880. Its totient is φ = 71111040.

The previous prime is 149878643. The next prime is 149878691. The reversal of 149878672 is 276878941.

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, 46654 + ... + 49762.

It is an arithmetic number, because the mean of its divisors is an integer number (7635672).

Almost surely, 2^149878672 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 149878672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152713440).

149878672 is an abundant number, since it is smaller than the sum of its proper divisors (155548208).

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

149878672 is a wasteful number, since it uses less digits than its factorization.

149878672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271 (or 3265 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 149878672 is about 12242.4945170500. The cubic root of 149878672 is about 531.1859901286.

The spelling of 149878672 in words is "one hundred forty-nine million, eight hundred seventy-eight thousand, six hundred seventy-two".