2247991845 has 48 divisors (see below), whose sum is σ = 3992962176. Its totient is φ = 1079056000.

The previous prime is 2247991841. The next prime is 2247991853. The reversal of 2247991845 is 5481997422.

2247991845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2247991845 - 2² = 2247991841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247991841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177184 + ... + 189446.

It is an arithmetic number, because the mean of its divisors is an integer number (83186712).

Almost surely, 2^2247991845 is an apocalyptic number.

It is an amenable number.

2247991845 is a deficient number, since it is larger than the sum of its proper divisors (1744970331).

2247991845 is a wasteful number, since it uses less digits than its factorization.

2247991845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394 (or 12383 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 2247991845 is about 47412.9923649626. The cubic root of 2247991845 is about 1309.9807399612.

The spelling of 2247991845 in words is "two billion, two hundred forty-seven million, nine hundred ninety-one thousand, eight hundred forty-five".