149738688 has 84 divisors (see below), whose sum is σ = 468236808. Its totient is φ = 45373440.

The previous prime is 149738681. The next prime is 149738747. The reversal of 149738688 is 886837941.

It is a super-2 number, since 2×149738688² = 44843349367922688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149738681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5481 + ... + 18152.

Almost surely, 2^149738688 is an apocalyptic number.

149738688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149738688 is an abundant number, since it is smaller than the sum of its proper divisors (318498120).

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

149738688 is a wasteful number, since it uses less digits than its factorization.

149738688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662 (or 23649 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 149738688 is about 12236.7760460017. The cubic root of 149738688 is about 531.0205658776.

It can be divided in two parts, 149738 and 688, that added together give a triangular number (150426 = T₅₄₈).

The spelling of 149738688 in words is "one hundred forty-nine million, seven hundred thirty-eight thousand, six hundred eighty-eight".