2138880460 has 24 divisors (see below), whose sum is σ = 4613046480. Its totient is φ = 832428864.

The previous prime is 2138880391. The next prime is 2138880479. The reversal of 2138880460 is 640888312.

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, 1444450 + ... + 1445929.

It is an arithmetic number, because the mean of its divisors is an integer number (192210270).

Almost surely, 2^2138880460 is an apocalyptic number.

2138880460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2138880460 is an abundant number, since it is smaller than the sum of its proper divisors (2474166020).

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

2138880460 is a wasteful number, since it uses less digits than its factorization.

2138880460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890425 (or 2890423 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 2138880460 is about 46248.0319581277. The cubic root of 2138880460 is about 1288.4339829369.

The spelling of 2138880460 in words is "two billion, one hundred thirty-eight million, eight hundred eighty thousand, four hundred sixty".