2194861632 has 28 divisors (see below), whose sum is σ = 5807238576. Its totient is φ = 731620480.

The previous prime is 2194861573. The next prime is 2194861633. The reversal of 2194861632 is 2361684912.

It is a super-4 number, since 4×2194861632⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2194861633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5715594 + ... + 5715977.

Almost surely, 2^2194861632 is an apocalyptic number.

It is an amenable number.

2194861632 is an abundant number, since it is smaller than the sum of its proper divisors (3612376944).

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

2194861632 is a wasteful number, since it uses less digits than its factorization.

2194861632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11431586 (or 11431576 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 2194861632 is about 46849.3503903736. The cubic root of 2194861632 is about 1299.5780942520.

The spelling of 2194861632 in words is "two billion, one hundred ninety-four million, eight hundred sixty-one thousand, six hundred thirty-two".