694468224 has 96 divisors (see below), whose sum is σ = 2116017540. Its totient is φ = 217866240.

The previous prime is 694468217. The next prime is 694468261. The reversal of 694468224 is 422864496.

It can be written as a sum of positive squares in 2 ways, for example, as 688117824 + 6350400 = 26232^2 + 2520^2 .

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

It is a super-2 number, since 2×694468224² = 964572228291428352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 694468224.

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 11 ways as a sum of consecutive naturals, for example, 1854 + ... + 37314.

Almost surely, 2^694468224 is an apocalyptic number.

694468224 is a gapful number since it is divisible by the number (64) 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 694468224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058008770).

694468224 is an abundant number, since it is smaller than the sum of its proper divisors (1421549316).

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

694468224 is a wasteful number, since it uses less digits than its factorization.

694468224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35498 (or 35483 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 694468224 is about 26352.7650162179. The cubic root of 694468224 is about 885.5589153562.

The spelling of 694468224 in words is "six hundred ninety-four million, four hundred sixty-eight thousand, two hundred twenty-four".