2261969494 has 32 divisors (see below), whose sum is σ = 3639744000. Its totient is φ = 1051074144.

The previous prime is 2261969491. The next prime is 2261969537. The reversal of 2261969494 is 4949691622.

It is a happy number.

2261969494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261969491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588867 + ... + 1590289.

It is an arithmetic number, because the mean of its divisors is an integer number (113742000).

Almost surely, 2^2261969494 is an apocalyptic number.

2261969494 is a deficient number, since it is larger than the sum of its proper divisors (1377774506).

2261969494 is a wasteful number, since it uses less digits than its factorization.

2261969494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its digits is 1679616, while the sum is 52.

The square root of 2261969494 is about 47560.1670939033. The cubic root of 2261969494 is about 1312.6902146570.

The spelling of 2261969494 in words is "two billion, two hundred sixty-one million, nine hundred sixty-nine thousand, four hundred ninety-four".