149927220 has 48 divisors (see below), whose sum is σ = 466441920. Its totient is φ = 39980448.

The previous prime is 149927189. The next prime is 149927231. The reversal of 149927220 is 22729941.

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

It is a congruent number.

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, 138282 + ... + 139361.

It is an arithmetic number, because the mean of its divisors is an integer number (9717540).

Almost surely, 2^149927220 is an apocalyptic number.

149927220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149927220 is an abundant number, since it is smaller than the sum of its proper divisors (316514700).

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

149927220 is a wasteful number, since it uses less digits than its factorization.

149927220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277661 (or 277653 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 149927220 is about 12244.4771223601. The cubic root of 149927220 is about 531.2433370329.

It can be divided in two parts, 149 and 927220, that added together give a square (927369 = 963²).

The spelling of 149927220 in words is "one hundred forty-nine million, nine hundred twenty-seven thousand, two hundred twenty".