694140 has 48 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 176704.

The previous prime is 694123. The next prime is 694189. The reversal of 694140 is 41496.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 694140.

It is a congruent number.

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, 1129 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2⁶⁹⁴¹⁴⁰ is an apocalyptic number.

694140 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 694140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016064).

694140 is an abundant number, since it is smaller than the sum of its proper divisors (1337988).

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

694140 is a wasteful number, since it uses less digits than its factorization.

694140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 694140 is about 833.1506466420. The cubic root of 694140 is about 88.5419380538.

The spelling of 694140 in words is "six hundred ninety-four thousand, one hundred forty".