2261244164 has 12 divisors (see below), whose sum is σ = 3977064000. Its totient is φ = 1124940168.

The previous prime is 2261244151. The next prime is 2261244203. The reversal of 2261244164 is 4614421622.

It is a super-2 number, since 2×2261244164² = 10226450338448117792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261244164.

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, 1419584 + ... + 1421175.

It is an arithmetic number, because the mean of its divisors is an integer number (331422000).

Almost surely, 2^2261244164 is an apocalyptic number.

It is an amenable number.

2261244164 is a deficient number, since it is larger than the sum of its proper divisors (1715819836).

2261244164 is a wasteful number, since it uses less digits than its factorization.

2261244164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840962 (or 2840960 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 2261244164 is about 47552.5410887788. The cubic root of 2261244164 is about 1312.5498892480.

Adding to 2261244164 its reverse (4614421622), we get a palindrome (6875665786).

The spelling of 2261244164 in words is "two billion, two hundred sixty-one million, two hundred forty-four thousand, one hundred sixty-four".