2261771622 has 48 divisors (see below), whose sum is σ = 5349661200. Its totient is φ = 684916800.

The previous prime is 2261771597. The next prime is 2261771627.

It is a happy number.

2261771622 is a `hidden beast` number, since 2 + 2 + 617 + 7 + 16 + 22 = 666.

2261771622 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2261771622² = 10231221740169021768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261771627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382972 + ... + 388832.

It is an arithmetic number, because the mean of its divisors is an integer number (111451275).

Almost surely, 2^2261771622 is an apocalyptic number.

2261771622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2261771622 is an abundant number, since it is smaller than the sum of its proper divisors (3087889578).

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

2261771622 is a wasteful number, since it uses less digits than its factorization.

2261771622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829 (or 7826 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 2261771622 is about 47558.0868202244. The cubic root of 2261771622 is about 1312.6519364790.

The spelling of 2261771622 in words is "two billion, two hundred sixty-one million, seven hundred seventy-one thousand, six hundred twenty-two".