149288940 has 48 divisors (see below), whose sum is σ = 464456160. Its totient is φ = 39810240.

The previous prime is 149288927. The next prime is 149288959. The reversal of 149288940 is 49882941.

149288940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137691 + ... + 138770.

It is an arithmetic number, because the mean of its divisors is an integer number (9676170).

Almost surely, 2^149288940 is an apocalyptic number.

149288940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149288940 is an abundant number, since it is smaller than the sum of its proper divisors (315167220).

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

149288940 is a wasteful number, since it uses less digits than its factorization.

149288940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276479 (or 276471 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 149288940 is about 12218.3853270389. The cubic root of 149288940 is about 530.4883833386.

The spelling of 149288940 in words is "one hundred forty-nine million, two hundred eighty-eight thousand, nine hundred forty".