2279394557 has 4 divisors (see below), whose sum is σ = 2486612256. Its totient is φ = 2072176860.

The previous prime is 2279394547. The next prime is 2279394569. The reversal of 2279394557 is 7554939722.

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 a de Polignac number, because none of the positive numbers 2^k-2279394557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2279394499 and 2279394508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279394517) 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, 103608833 + ... + 103608854.

It is an arithmetic number, because the mean of its divisors is an integer number (621653064).

Almost surely, 2^2279394557 is an apocalyptic number.

It is an amenable number.

2279394557 is a deficient number, since it is larger than the sum of its proper divisors (207217699).

2279394557 is a wasteful number, since it uses less digits than its factorization.

2279394557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207217698.

The product of its digits is 4762800, while the sum is 53.

The square root of 2279394557 is about 47743.0053201513. The cubic root of 2279394557 is about 1316.0523619699.

The spelling of 2279394557 in words is "two billion, two hundred seventy-nine million, three hundred ninety-four thousand, five hundred fifty-seven".