2813257394 has 8 divisors (see below), whose sum is σ = 4322810268. Its totient is φ = 1372320640.

The previous prime is 2813257313. The next prime is 2813257417. The reversal of 2813257394 is 4937523182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1895470369 + 917787025 = 43537^2 + 30295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17153927 + ... + 17154090.

Almost surely, 2^2813257394 is an apocalyptic number.

2813257394 is a deficient number, since it is larger than the sum of its proper divisors (1509552874).

2813257394 is a wasteful number, since it uses less digits than its factorization.

2813257394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34308060.

The product of its digits is 362880, while the sum is 44.

The square root of 2813257394 is about 53040.1488874230. The cubic root of 2813257394 is about 1411.6807404012.

The spelling of 2813257394 in words is "two billion, eight hundred thirteen million, two hundred fifty-seven thousand, three hundred ninety-four".