1239675988 has 48 divisors (see below), whose sum is σ = 2343914496. Its totient is φ = 572014080.

The previous prime is 1239675953. The next prime is 1239675991. The reversal of 1239675988 is 8895769321.

It is a super-2 number, since 2×1239675988² = 3073593110447552288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1690870 + ... + 1691602.

It is an arithmetic number, because the mean of its divisors is an integer number (48831552).

Almost surely, 2^1239675988 is an apocalyptic number.

It is an amenable number.

1239675988 is a deficient number, since it is larger than the sum of its proper divisors (1104238508).

1239675988 is a wasteful number, since it uses less digits than its factorization.

1239675988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1382 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The square root of 1239675988 is about 35209.0327614946. The cubic root of 1239675988 is about 1074.2434880785.

The spelling of 1239675988 in words is "one billion, two hundred thirty-nine million, six hundred seventy-five thousand, nine hundred eighty-eight".