863734140 has 36 divisors (see below), whose sum is σ = 2619994104. Its totient is φ = 230329056.

The previous prime is 863734139. The next prime is 863734171. The reversal of 863734140 is 41437368.

863734140 is a `hidden beast` number, since 8 + 637 + 3 + 4 + 14 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 863734095 and 863734104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2399082 + ... + 2399441.

It is an arithmetic number, because the mean of its divisors is an integer number (72777614).

Almost surely, 2^863734140 is an apocalyptic number.

It is an amenable number.

863734140 is an abundant number, since it is smaller than the sum of its proper divisors (1756259964).

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

863734140 is a wasteful number, since it uses less digits than its factorization.

863734140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798538 (or 4798533 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 863734140 is about 29389.3541950142. The cubic root of 863734140 is about 952.3429298527.

The spelling of 863734140 in words is "eight hundred sixty-three million, seven hundred thirty-four thousand, one hundred forty".