149009240 has 16 divisors (see below), whose sum is σ = 335270880. Its totient is φ = 59603680.

The previous prime is 149009207. The next prime is 149009291. The reversal of 149009240 is 42900941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862576 + ... + 1862655.

It is an arithmetic number, because the mean of its divisors is an integer number (20954430).

Almost surely, 2^149009240 is an apocalyptic number.

149009240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149009240 is an abundant number, since it is smaller than the sum of its proper divisors (186261640).

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

149009240 is a wasteful number, since it uses less digits than its factorization.

149009240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725242 (or 3725238 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 149009240 is about 12206.9340950134. The cubic root of 149009240 is about 530.1568777326.

The spelling of 149009240 in words is "one hundred forty-nine million, nine thousand, two hundred forty".