694323630 has 384 divisors, whose sum is σ = 2537256960. Its totient is φ = 132814080.

The previous prime is 694323629. The next prime is 694323661. The reversal of 694323630 is 36323496.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1891707 + ... + 1892073.

It is an arithmetic number, because the mean of its divisors is an integer number (6607440).

Almost surely, 2^694323630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694323630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268628480).

694323630 is an abundant number, since it is smaller than the sum of its proper divisors (1842933330).

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

694323630 is a wasteful number, since it uses less digits than its factorization.

694323630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 694323630 is about 26350.0214421165. The cubic root of 694323630 is about 885.4974508720.

The spelling of 694323630 in words is "six hundred ninety-four million, three hundred twenty-three thousand, six hundred thirty".