2278396343 has 4 divisors (see below), whose sum is σ = 2398311960. Its totient is φ = 2158480728.

The previous prime is 2278396327. The next prime is 2278396427. The reversal of 2278396343 is 3436938722.

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

It is a cyclic number.

It is not a de Polignac number, because 2278396343 - 2⁴ = 2278396327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278396303) 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, 59957780 + ... + 59957817.

It is an arithmetic number, because the mean of its divisors is an integer number (599577990).

Almost surely, 2^2278396343 is an apocalyptic number.

2278396343 is a deficient number, since it is larger than the sum of its proper divisors (119915617).

2278396343 is a wasteful number, since it uses less digits than its factorization.

2278396343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119915616.

The product of its digits is 1306368, while the sum is 47.

The square root of 2278396343 is about 47732.5501413867. The cubic root of 2278396343 is about 1315.8602212244.

The spelling of 2278396343 in words is "two billion, two hundred seventy-eight million, three hundred ninety-six thousand, three hundred forty-three".