863372340 has 72 divisors (see below), whose sum is σ = 2709219240. Its totient is φ = 222292224.

The previous prime is 863372339. The next prime is 863372371. The reversal of 863372340 is 43273368.

It can be written as a sum of positive squares in 4 ways, for example, as 1127844 + 862244496 = 1062^2 + 29364^2 .

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 = 863372295 and 863372304.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 77479 + ... + 87918.

It is an arithmetic number, because the mean of its divisors is an integer number (37628045).

Almost surely, 2^863372340 is an apocalyptic number.

It is an amenable number.

863372340 is an abundant number, since it is smaller than the sum of its proper divisors (1845846900).

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

863372340 is a wasteful number, since it uses less digits than its factorization.

863372340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165441 (or 165436 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 863372340 is about 29383.1982602303. The cubic root of 863372340 is about 952.2099391647.

The spelling of 863372340 in words is "eight hundred sixty-three million, three hundred seventy-two thousand, three hundred forty".