2249842057 has 4 divisors (see below), whose sum is σ = 2249962900. Its totient is φ = 2249721216.

The previous prime is 2249842031. The next prime is 2249842097. The reversal of 2249842057 is 7502489422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1888423936 + 361418121 = 43456^2 + 19011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2249842057 is a prime.

It is the 47433-rd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2249842097) by changing a digit.

It is a nontrivial repunit in base 47432.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25932 + ... + 71917.

It is an arithmetic number, because the mean of its divisors is an integer number (562490725).

Almost surely, 2^2249842057 is an apocalyptic number.

It is an amenable number.

2249842057 is a deficient number, since it is larger than the sum of its proper divisors (120843).

2249842057 is an equidigital number, since it uses as much as digits as its factorization.

2249842057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120842.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2249842057 is about 47432.5000079060. The cubic root of 2249842057 is about 1310.3400350716.

The spelling of 2249842057 in words is "two billion, two hundred forty-nine million, eight hundred forty-two thousand, fifty-seven".