2245667780 has 24 divisors (see below), whose sum is σ = 4878520920. Its totient is φ = 867292160.

The previous prime is 2245667773. The next prime is 2245667783. The reversal of 2245667780 is 877665422.

It can be written as a sum of positive squares in 4 ways, for example, as 630913924 + 1614753856 = 25118^2 + 40184^2 .

It is not an unprimeable number, because it can be changed into a prime (2245667783) 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, 1935341 + ... + 1936500.

It is an arithmetic number, because the mean of its divisors is an integer number (203271705).

Almost surely, 2^2245667780 is an apocalyptic number.

2245667780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245667780 is an abundant number, since it is smaller than the sum of its proper divisors (2632853140).

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

2245667780 is a wasteful number, since it uses less digits than its factorization.

2245667780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871879 (or 3871877 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 2245667780 is about 47388.4772914260. The cubic root of 2245667780 is about 1309.5291472553.

The spelling of 2245667780 in words is "two billion, two hundred forty-five million, six hundred sixty-seven thousand, seven hundred eighty".