2857457446 has 4 divisors (see below), whose sum is σ = 4286186172. Its totient is φ = 1428728722.

The previous prime is 2857457411. The next prime is 2857457467. The reversal of 2857457446 is 6447547582.

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

It is a junction number, because it is equal to n+sod(n) for n = 2857457393 and 2857457402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714364360 + ... + 714364363.

It is an arithmetic number, because the mean of its divisors is an integer number (1071546543).

Almost surely, 2^2857457446 is an apocalyptic number.

2857457446 is a deficient number, since it is larger than the sum of its proper divisors (1428728726).

2857457446 is a wasteful number, since it uses less digits than its factorization.

2857457446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428728725.

The product of its digits is 7526400, while the sum is 52.

The square root of 2857457446 is about 53455.1910107896. The cubic root of 2857457446 is about 1419.0354896356.

The spelling of 2857457446 in words is "two billion, eight hundred fifty-seven million, four hundred fifty-seven thousand, four hundred forty-six".