863003040 has 96 divisors (see below), whose sum is σ = 2722579776. Its totient is φ = 229785600.

The previous prime is 863003039. The next prime is 863003107. The reversal of 863003040 is 40300368.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 863003040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538240 + ... + 539840.

It is an arithmetic number, because the mean of its divisors is an integer number (28360206).

Almost surely, 2^863003040 is an apocalyptic number.

863003040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863003040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361289888).

863003040 is an abundant number, since it is smaller than the sum of its proper divisors (1859576736).

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

863003040 is a wasteful number, since it uses less digits than its factorization.

863003040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 863003040 is about 29376.9133844929. The cubic root of 863003040 is about 952.0741532993.

The spelling of 863003040 in words is "eight hundred sixty-three million, three thousand, forty".