857240514 has 24 divisors (see below), whose sum is σ = 2000228412. Its totient is φ = 263766240.

The previous prime is 857240491. The next prime is 857240519. The reversal of 857240514 is 415042758.

It can be written as a sum of positive squares in 2 ways, for example, as 825125625 + 32114889 = 28725^2 + 5667^2 .

It is a super-2 number, since 2×857240514² = 1469722597685968392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (857240519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1831477 + ... + 1831944.

Almost surely, 2^857240514 is an apocalyptic number.

857240514 is an abundant number, since it is smaller than the sum of its proper divisors (1142987898).

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

857240514 is a wasteful number, since it uses less digits than its factorization.

857240514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663442 (or 3663439 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 857240514 is about 29278.6699492993. The cubic root of 857240514 is about 949.9503257498.

The spelling of 857240514 in words is "eight hundred fifty-seven million, two hundred forty thousand, five hundred fourteen".