863457438 has 24 divisors (see below), whose sum is σ = 1834477272. Its totient is φ = 270888064.

The previous prime is 863457437. The next prime is 863457443. The reversal of 863457438 is 834754368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863457437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247245 + ... + 250712.

It is an arithmetic number, because the mean of its divisors is an integer number (76436553).

Almost surely, 2^863457438 is an apocalyptic number.

863457438 is an abundant number, since it is smaller than the sum of its proper divisors (971019834).

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

863457438 is a wasteful number, since it uses less digits than its factorization.

863457438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497996 (or 497979 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 863457438 is about 29384.6462970035. The cubic root of 863457438 is about 952.2412228861.

The spelling of 863457438 in words is "eight hundred sixty-three million, four hundred fifty-seven thousand, four hundred thirty-eight".