1238418980 has 96 divisors (see below), whose sum is σ = 2730309120. Its totient is φ = 471511040.

The previous prime is 1238418967. The next prime is 1238418997. The reversal of 1238418980 is 898148321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9453515 + ... + 9453645.

It is an arithmetic number, because the mean of its divisors is an integer number (28440720).

Almost surely, 2^1238418980 is an apocalyptic number.

1238418980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1238418980 is an abundant number, since it is smaller than the sum of its proper divisors (1491890140).

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

1238418980 is a wasteful number, since it uses less digits than its factorization.

1238418980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 1238418980 is about 35191.1775875716. The cubic root of 1238418980 is about 1073.8802777632.

The spelling of 1238418980 in words is "one billion, two hundred thirty-eight million, four hundred eighteen thousand, nine hundred eighty".