694769440 has 24 divisors (see below), whose sum is σ = 1641393180. Its totient is φ = 277907712.

The previous prime is 694769437. The next prime is 694769473. The reversal of 694769440 is 44967496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 682463376 + 12306064 = 26124^2 + 3508^2 .

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 3 ways as a sum of consecutive naturals, for example, 2170995 + ... + 2171314.

Almost surely, 2^694769440 is an apocalyptic number.

It is an amenable number.

694769440 is an abundant number, since it is smaller than the sum of its proper divisors (946623740).

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

694769440 is a wasteful number, since it uses less digits than its factorization.

694769440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342324 (or 4342316 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 694769440 is about 26358.4794705613. The cubic root of 694769440 is about 885.6869298325.

The spelling of 694769440 in words is "six hundred ninety-four million, seven hundred sixty-nine thousand, four hundred forty".