1696240 has 80 divisors (see below), whose sum is σ = 4874688. Its totient is φ = 534528.

The previous prime is 1696237. The next prime is 1696241. The reversal of 1696240 is 426961.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1696199 and 1696208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1696241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7164 + ... + 7396.

2^1696240 is an apocalyptic number.

1696240 is a gapful number since it is divisible by the number (10) 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 1696240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2437344).

1696240 is an abundant number, since it is smaller than the sum of its proper divisors (3178448).

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

1696240 is a wasteful number, since it uses less digits than its factorization.

1696240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1696240 is about 1302.3977886959. The cubic root of 1696240 is about 119.2602641084.

It can be divided in two parts, 1696 and 240, that added together give a square (1936 = 44²).

The spelling of 1696240 in words is "one million, six hundred ninety-six thousand, two hundred forty".