694043080 has 64 divisors (see below), whose sum is σ = 1654959600. Its totient is φ = 261488640.

The previous prime is 694043069. The next prime is 694043081. The reversal of 694043080 is 80340496.

It can be written as a sum of positive squares in 8 ways, for example, as 27060804 + 666982276 = 5202^2 + 25826^2 .

It is not an unprimeable number, because it can be changed into a prime (694043081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40264 + ... + 54856.

Almost surely, 2^694043080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694043080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827479800).

694043080 is an abundant number, since it is smaller than the sum of its proper divisors (960916520).

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

694043080 is a wasteful number, since it uses less digits than its factorization.

694043080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14674 (or 14670 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 694043080 is about 26344.6973791691. The cubic root of 694043080 is about 885.3781694272.

The spelling of 694043080 in words is "six hundred ninety-four million, forty-three thousand, eighty".