2261826740 has 12 divisors (see below), whose sum is σ = 4749836196. Its totient is φ = 904730688.

The previous prime is 2261826733. The next prime is 2261826767. The reversal of 2261826740 is 476281622.

It can be written as a sum of positive squares in 2 ways, for example, as 477947044 + 1783879696 = 21862^2 + 42236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2261826694 and 2261826703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56545649 + ... + 56545688.

It is an arithmetic number, because the mean of its divisors is an integer number (395819683).

Almost surely, 2^2261826740 is an apocalyptic number.

2261826740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261826740 is an abundant number, since it is smaller than the sum of its proper divisors (2488009456).

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

2261826740 is a wasteful number, since it uses less digits than its factorization.

2261826740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113091346 (or 113091344 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2261826740 is about 47558.6662975319. Note that the first 3 decimals coincide. The cubic root of 2261826740 is about 1312.6625992357.

The spelling of 2261826740 in words is "two billion, two hundred sixty-one million, eight hundred twenty-six thousand, seven hundred forty".