2249642188 has 6 divisors (see below), whose sum is σ = 3936873836. Its totient is φ = 1124821092.

The previous prime is 2249642179. The next prime is 2249642189. The reversal of 2249642188 is 8812469422.

It is not an unprimeable number, because it can be changed into a prime (2249642189) 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 as a sum of consecutive naturals, namely, 281205270 + ... + 281205277.

Almost surely, 2^2249642188 is an apocalyptic number.

It is an amenable number.

2249642188 is a deficient number, since it is larger than the sum of its proper divisors (1687231648).

2249642188 is a wasteful number, since it uses less digits than its factorization.

2249642188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562410551 (or 562410549 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 2249642188 is about 47430.3930829168. The cubic root of 2249642188 is about 1310.3012317391.

The spelling of 2249642188 in words is "two billion, two hundred forty-nine million, six hundred forty-two thousand, one hundred eighty-eight".