1170440 has 32 divisors (see below), whose sum is σ = 2727000. Its totient is φ = 451584.

The previous prime is 1170437. The next prime is 1170443. The reversal of 1170440 is 440711.

It is an interprime number because it is at equal distance from previous prime (1170437) and next prime (1170443).

It can be written as a sum of positive squares in 4 ways, for example, as 850084 + 320356 = 922^2 + 566^2 .

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 1664.

2^1170440 is an apocalyptic number.

1170440 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 1170440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363500).

1170440 is an abundant number, since it is smaller than the sum of its proper divisors (1556560).

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

1170440 is a wasteful number, since it uses less digits than its factorization.

1170440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1170440 is about 1081.8687535926. The cubic root of 1170440 is about 105.3860317764.

The spelling of 1170440 in words is "one million, one hundred seventy thousand, four hundred forty".