2261374921 has 16 divisors (see below), whose sum is σ = 2500968960. Its totient is φ = 2031906240.

The previous prime is 2261374919. The next prime is 2261374933. The reversal of 2261374921 is 1294731622.

It is not a de Polignac number, because 2261374921 - 2¹ = 2261374919 is a prime.

It is a super-2 number, since 2×2261374921² = 10227633066655512482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261374321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57411 + ... + 88423.

It is an arithmetic number, because the mean of its divisors is an integer number (156310560).

Almost surely, 2^2261374921 is an apocalyptic number.

It is an amenable number.

2261374921 is a deficient number, since it is larger than the sum of its proper divisors (239594039).

2261374921 is a wasteful number, since it uses less digits than its factorization.

2261374921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31176.

The product of its digits is 36288, while the sum is 37.

The square root of 2261374921 is about 47553.9159375966. The cubic root of 2261374921 is about 1312.5751882671.

The spelling of 2261374921 in words is "two billion, two hundred sixty-one million, three hundred seventy-four thousand, nine hundred twenty-one".