2857457172 has 24 divisors (see below), whose sum is σ = 7059600576. Its totient is φ = 896457088.

The previous prime is 2857457171. The next prime is 2857457173. The reversal of 2857457172 is 2717547582.

It is an interprime number because it is at equal distance from previous prime (2857457171) and next prime (2857457173).

It is a super-2 number, since 2×2857457172² = 16330122979628475168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857457171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7003368 + ... + 7003775.

It is an arithmetic number, because the mean of its divisors is an integer number (294150024).

Almost surely, 2^2857457172 is an apocalyptic number.

It is an amenable number.

2857457172 is an abundant number, since it is smaller than the sum of its proper divisors (4202143404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2857457172 is a wasteful number, since it uses less digits than its factorization.

2857457172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14007167 (or 14007165 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 48.

The square root of 2857457172 is about 53455.1884478953. The cubic root of 2857457172 is about 1419.0354442787.

The spelling of 2857457172 in words is "two billion, eight hundred fifty-seven million, four hundred fifty-seven thousand, one hundred seventy-two".