2238449880 has 32 divisors (see below), whose sum is σ = 6715350000. Its totient is φ = 596919936.

The previous prime is 2238449849. The next prime is 2238449897. The reversal of 2238449880 is 889448322.

It is a congruent number.

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, 9326755 + ... + 9326994.

Almost surely, 2^2238449880 is an apocalyptic number.

2238449880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2238449880 is an abundant number, since it is smaller than the sum of its proper divisors (4476900120).

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

2238449880 is a wasteful number, since it uses less digits than its factorization.

2238449880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18653763 (or 18653759 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 2238449880 is about 47312.2592992556. The cubic root of 2238449880 is about 1308.1246362543.

The spelling of 2238449880 in words is "two billion, two hundred thirty-eight million, four hundred forty-nine thousand, eight hundred eighty".