2261172700 has 18 divisors (see below), whose sum is σ = 4906744976. Its totient is φ = 904469040.

The previous prime is 2261172689. The next prime is 2261172707. The reversal of 2261172700 is 72711622.

It is a super-2 number, since 2×2261172700² = 10225803958450580000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261172707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11305764 + ... + 11305963.

Almost surely, 2^2261172700 is an apocalyptic number.

2261172700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261172700 is an abundant number, since it is smaller than the sum of its proper divisors (2645572276).

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

2261172700 is a wasteful number, since it uses less digits than its factorization.

2261172700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22611741 (or 22611734 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2261172700 is about 47551.7896613787. The cubic root of 2261172700 is about 1312.5360618965.

The spelling of 2261172700 in words is "two billion, two hundred sixty-one million, one hundred seventy-two thousand, seven hundred".