1188040 has 32 divisors (see below), whose sum is σ = 3055680. Its totient is φ = 407232.

The previous prime is 1188037. The next prime is 1188041. The reversal of 1188040 is 408811.

It is a super-2 number, since 2×1188040² = 2822878083200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1188041) 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, 1842 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (95490).

2^1188040 is an apocalyptic number.

1188040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1188040 is an abundant number, since it is smaller than the sum of its proper divisors (1867640).

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

1188040 is a wasteful number, since it uses less digits than its factorization.

1188040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261 (or 4257 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1188040 is about 1089.9724767167. The cubic root of 1188040 is about 105.9116387159.

The spelling of 1188040 in words is "one million, one hundred eighty-eight thousand, forty".