149866220 has 48 divisors (see below), whose sum is σ = 380842560. Its totient is φ = 48359424.

The previous prime is 149866219. The next prime is 149866247. The reversal of 149866220 is 22668941.

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, 29105 + ... + 33864.

It is an arithmetic number, because the mean of its divisors is an integer number (7934220).

Almost surely, 2^149866220 is an apocalyptic number.

149866220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149866220 is an abundant number, since it is smaller than the sum of its proper divisors (230976340).

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

149866220 is a wasteful number, since it uses less digits than its factorization.

149866220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63002 (or 63000 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 149866220 is about 12241.9859500001. The cubic root of 149866220 is about 531.1712793161.

The spelling of 149866220 in words is "one hundred forty-nine million, eight hundred sixty-six thousand, two hundred twenty".