149526440 has 48 divisors (see below), whose sum is σ = 391367700. Its totient is φ = 51265536.

The previous prime is 149526431. The next prime is 149526469. The reversal of 149526440 is 44625941.

149526440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 134050084 + 15476356 = 11578^2 + 3934^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 149526440.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36185 + ... + 40104.

Almost surely, 2^149526440 is an apocalyptic number.

149526440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149526440 is an abundant number, since it is smaller than the sum of its proper divisors (241841260).

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

149526440 is a wasteful number, since it uses less digits than its factorization.

149526440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76314 (or 76303 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 149526440 is about 12228.1004248411. The cubic root of 149526440 is about 530.7695478108.

The spelling of 149526440 in words is "one hundred forty-nine million, five hundred twenty-six thousand, four hundred forty".