149342220 has 72 divisors (see below), whose sum is σ = 472713696. Its totient is φ = 38092032.

The previous prime is 149342203. The next prime is 149342231. The reversal of 149342220 is 22243941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13897 + ... + 22176.

It is an arithmetic number, because the mean of its divisors is an integer number (6565468).

Almost surely, 2^149342220 is an apocalyptic number.

149342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149342220 is an abundant number, since it is smaller than the sum of its proper divisors (323371476).

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

149342220 is a wasteful number, since it uses less digits than its factorization.

149342220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36111 (or 36106 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 149342220 is about 12220.5654533659. The cubic root of 149342220 is about 530.5514848188.

The spelling of 149342220 in words is "one hundred forty-nine million, three hundred forty-two thousand, two hundred twenty".