150556420 has 96 divisors (see below), whose sum is σ = 390700800. Its totient is φ = 48545280.

The previous prime is 150556397. The next prime is 150556447. The reversal of 150556420 is 24655051.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115975 + ... + 117265.

It is an arithmetic number, because the mean of its divisors is an integer number (4069800).

Almost surely, 2^150556420 is an apocalyptic number.

150556420 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 150556420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195350400).

150556420 is an abundant number, since it is smaller than the sum of its proper divisors (240144380).

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

150556420 is a wasteful number, since it uses less digits than its factorization.

150556420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 150556420 is about 12270.1434384444. The cubic root of 150556420 is about 531.9854566661.

The spelling of 150556420 in words is "one hundred fifty million, five hundred fifty-six thousand, four hundred twenty".