149037440 has 32 divisors (see below), whose sum is σ = 356294160. Its totient is φ = 59614720.

The previous prime is 149037439. The next prime is 149037461. The reversal of 149037440 is 44730941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 149037397 and 149037406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115796 + ... + 117075.

Almost surely, 2^149037440 is an apocalyptic number.

149037440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149037440 is an abundant number, since it is smaller than the sum of its proper divisors (207256720).

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

149037440 is an equidigital number, since it uses as much as digits as its factorization.

149037440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232890 (or 232878 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 149037440 is about 12208.0891215620. The cubic root of 149037440 is about 530.1903196877.

The spelling of 149037440 in words is "one hundred forty-nine million, thirty-seven thousand, four hundred forty".