1504128880 has 20 divisors (see below), whose sum is σ = 3497099832. Its totient is φ = 601651520.

The previous prime is 1504128811. The next prime is 1504128887. The reversal of 1504128880 is 888214051.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504128887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9400726 + ... + 9400885.

Almost surely, 2^1504128880 is an apocalyptic number.

1504128880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1504128880 is an abundant number, since it is smaller than the sum of its proper divisors (1992970952).

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

1504128880 is a wasteful number, since it uses less digits than its factorization.

1504128880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18801624 (or 18801618 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The square root of 1504128880 is about 38783.1004433632. The cubic root of 1504128880 is about 1145.7635887231.

The spelling of 1504128880 in words is "one billion, five hundred four million, one hundred twenty-eight thousand, eight hundred eighty".