694440 has 64 divisors (see below), whose sum is σ = 2318400. Its totient is φ = 184896.

The previous prime is 694427. The next prime is 694457. The reversal of 694440 is 44496.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759 + ... + 1401.

It is an arithmetic number, because the mean of its divisors is an integer number (36225).

2⁶⁹⁴⁴⁴⁰ is an apocalyptic number.

694440 is a gapful number since it is divisible by the number (60) 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 694440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1159200).

694440 is an abundant number, since it is smaller than the sum of its proper divisors (1623960).

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

694440 is a wasteful number, since it uses less digits than its factorization.

694440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 694440 is about 833.3306666624. The cubic root of 694440 is about 88.5546918477.

The spelling of 694440 in words is "six hundred ninety-four thousand, four hundred forty".