149590020 has 24 divisors (see below), whose sum is σ = 418852224. Its totient is φ = 39890656.

The previous prime is 149590019. The next prime is 149590027. The reversal of 149590020 is 20095941.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 149590020.

It is not an unprimeable number, because it can be changed into a prime (149590027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246524 + ... + 1246643.

It is an arithmetic number, because the mean of its divisors is an integer number (17452176).

Almost surely, 2^149590020 is an apocalyptic number.

149590020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149590020 is an abundant number, since it is smaller than the sum of its proper divisors (269262204).

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

149590020 is a wasteful number, since it uses less digits than its factorization.

149590020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493179 (or 2493177 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 149590020 is about 12230.6998982070. The cubic root of 149590020 is about 530.8447664943.

The spelling of 149590020 in words is "one hundred forty-nine million, five hundred ninety thousand, twenty".