149594220 has 288 divisors, whose sum is σ = 528353280. Its totient is φ = 34007040.

The previous prime is 149594191. The next prime is 149594227. The reversal of 149594220 is 22495941.

149594220 is a `hidden beast` number, since 1 + 49 + 594 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (149594227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1802299 + ... + 1802381.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^149594220 is an apocalyptic number.

149594220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149594220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264176640).

149594220 is an abundant number, since it is smaller than the sum of its proper divisors (378759060).

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

149594220 is a wasteful number, since it uses less digits than its factorization.

149594220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 149594220 is about 12230.8715960883. The cubic root of 149594220 is about 530.8497345779.

The spelling of 149594220 in words is "one hundred forty-nine million, five hundred ninety-four thousand, two hundred twenty".