2287993445 has 4 divisors (see below), whose sum is σ = 2745592140. Its totient is φ = 1830394752.

The previous prime is 2287993439. The next prime is 2287993447. The reversal of 2287993445 is 5443997822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 428572804 + 1859420641 = 20702^2 + 43121^2 .

It is a cyclic number.

It is not a de Polignac number, because 2287993445 - 2²⁸ = 2019557989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287993447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228799340 + ... + 228799349.

It is an arithmetic number, because the mean of its divisors is an integer number (686398035).

Almost surely, 2^2287993445 is an apocalyptic number.

It is an amenable number.

2287993445 is a deficient number, since it is larger than the sum of its proper divisors (457598695).

2287993445 is an equidigital number, since it uses as much as digits as its factorization.

2287993445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457598694.

The product of its digits is 4354560, while the sum is 53.

The square root of 2287993445 is about 47832.9744527768. The cubic root of 2287993445 is about 1317.7051965177.

The spelling of 2287993445 in words is "two billion, two hundred eighty-seven million, nine hundred ninety-three thousand, four hundred forty-five".