1238840880 has 40 divisors (see below), whose sum is σ = 3840407472. Its totient is φ = 330357504.

The previous prime is 1238840861. The next prime is 1238840893. The reversal of 1238840880 is 880488321.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580679 + ... + 2581158.

Almost surely, 2^1238840880 is an apocalyptic number.

1238840880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1238840880 is an abundant number, since it is smaller than the sum of its proper divisors (2601566592).

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

1238840880 is a wasteful number, since it uses less digits than its factorization.

1238840880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161853 (or 5161847 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 1238840880 is about 35197.1714772650. The cubic root of 1238840880 is about 1074.0022124385.

The spelling of 1238840880 in words is "one billion, two hundred thirty-eight million, eight hundred forty thousand, eight hundred eighty".