1239488628 has 24 divisors (see below), whose sum is σ = 3305303232. Its totient is φ = 354139584.

The previous prime is 1239488611. The next prime is 1239488629. The reversal of 1239488628 is 8268849321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239488629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7377825 + ... + 7377992.

It is an arithmetic number, because the mean of its divisors is an integer number (137720968).

Almost surely, 2^1239488628 is an apocalyptic number.

It is an amenable number.

1239488628 is an abundant number, since it is smaller than the sum of its proper divisors (2065814604).

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

1239488628 is a wasteful number, since it uses less digits than its factorization.

1239488628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755831 (or 14755829 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 1239488628 is about 35206.3719800834. The cubic root of 1239488628 is about 1074.1893663020.

The spelling of 1239488628 in words is "one billion, two hundred thirty-nine million, four hundred eighty-eight thousand, six hundred twenty-eight".