2265398493 has 4 divisors (see below), whose sum is σ = 3020531328. Its totient is φ = 1510265660.

The previous prime is 2265398467. The next prime is 2265398503. The reversal of 2265398493 is 3948935622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2265398493 - 2¹⁰ = 2265397469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265398413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377566413 + ... + 377566418.

It is an arithmetic number, because the mean of its divisors is an integer number (755132832).

Almost surely, 2^2265398493 is an apocalyptic number.

It is an amenable number.

2265398493 is a deficient number, since it is larger than the sum of its proper divisors (755132835).

2265398493 is an equidigital number, since it uses as much as digits as its factorization.

2265398493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755132834.

The product of its digits is 2799360, while the sum is 51.

The square root of 2265398493 is about 47596.2025060824. The cubic root of 2265398493 is about 1313.3531974902.

The spelling of 2265398493 in words is "two billion, two hundred sixty-five million, three hundred ninety-eight thousand, four hundred ninety-three".