2245739780 has 48 divisors (see below), whose sum is σ = 5210593920. Its totient is φ = 808693248.

The previous prime is 2245739779. The next prime is 2245739819. The reversal of 2245739780 is 879375422.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135770 + ... + 151409.

It is an arithmetic number, because the mean of its divisors is an integer number (108554040).

Almost surely, 2^2245739780 is an apocalyptic number.

2245739780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245739780 is an abundant number, since it is smaller than the sum of its proper divisors (2964854140).

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

2245739780 is a wasteful number, since it uses less digits than its factorization.

2245739780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287228 (or 287226 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 2245739780 is about 47389.2369636820. The cubic root of 2245739780 is about 1309.5431423635.

The spelling of 2245739780 in words is "two billion, two hundred forty-five million, seven hundred thirty-nine thousand, seven hundred eighty".