149237440 has 56 divisors (see below), whose sum is σ = 387687312. Its totient is φ = 54266880.

The previous prime is 149237437. The next prime is 149237467. The reversal of 149237440 is 44732941.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 149237396 and 149237405.

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, 17679 + ... + 24718.

Almost surely, 2^149237440 is an apocalyptic number.

149237440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149237440 is an abundant number, since it is smaller than the sum of its proper divisors (238449872).

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

149237440 is a wasteful number, since it uses less digits than its factorization.

149237440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42425 (or 42415 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 149237440 is about 12216.2776654757. The cubic root of 149237440 is about 530.4273757072.

The spelling of 149237440 in words is "one hundred forty-nine million, two hundred thirty-seven thousand, four hundred forty".