1170640 has 20 divisors (see below), whose sum is σ = 2721924. Its totient is φ = 468224.

The previous prime is 1170607. The next prime is 1170641. The reversal of 1170640 is 460711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 1032256 = 372^2 + 1016^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237 + ... + 7396.

2^1170640 is an apocalyptic number.

1170640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170640 is an abundant number, since it is smaller than the sum of its proper divisors (1551284).

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

1170640 is a wasteful number, since it uses less digits than its factorization.

1170640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14646 (or 14640 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1170640 is about 1081.9611822981. The cubic root of 1170640 is about 105.3920340793.

The spelling of 1170640 in words is "one million, one hundred seventy thousand, six hundred forty".