1238225980 has 24 divisors (see below), whose sum is σ = 2611739088. Its totient is φ = 493106688.

The previous prime is 1238225971. The next prime is 1238225981. The reversal of 1238225980 is 895228321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238225981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131829 + ... + 140908.

It is an arithmetic number, because the mean of its divisors is an integer number (108822462).

Almost surely, 2^1238225980 is an apocalyptic number.

1238225980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1238225980 is an abundant number, since it is smaller than the sum of its proper divisors (1373513108).

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

1238225980 is a wasteful number, since it uses less digits than its factorization.

1238225980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272973 (or 272971 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1238225980 is about 35188.4353161660. The cubic root of 1238225980 is about 1073.8244889807.

The spelling of 1238225980 in words is "one billion, two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred eighty".