1195640 has 32 divisors (see below), whose sum is σ = 2734560. Its totient is φ = 470400.

The previous prime is 1195589. The next prime is 1195669. The reversal of 1195640 is 465911.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2630 + ... + 3050.

It is an arithmetic number, because the mean of its divisors is an integer number (85455).

2^1195640 is an apocalyptic number.

1195640 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 1195640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367280).

1195640 is an abundant number, since it is smaller than the sum of its proper divisors (1538920).

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

1195640 is a wasteful number, since it uses less digits than its factorization.

1195640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1195640 is about 1093.4532454568. The cubic root of 1195640 is about 106.1370009731.

The spelling of 1195640 in words is "one million, one hundred ninety-five thousand, six hundred forty".