147728920 has 32 divisors (see below), whose sum is σ = 338029200. Its totient is φ = 58089088.

The previous prime is 147728909. The next prime is 147728939. The reversal of 147728920 is 29827741.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 28939 + ... + 33658.

Almost surely, 2^147728920 is an apocalyptic number.

147728920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147728920 is an abundant number, since it is smaller than the sum of its proper divisors (190300280).

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

147728920 is a wasteful number, since it uses less digits than its factorization.

147728920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62667 (or 62663 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 147728920 is about 12154.3786348789. The cubic root of 147728920 is about 528.6341000509.

The spelling of 147728920 in words is "one hundred forty-seven million, seven hundred twenty-eight thousand, nine hundred twenty".