1166438 has 48 divisors (see below), whose sum is σ = 2371680. Its totient is φ = 419328.

The previous prime is 1166413. The next prime is 1166441. The reversal of 1166438 is 8346611.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a zygodrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1166438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40208 + ... + 40236.

It is an arithmetic number, because the mean of its divisors is an integer number (49410).

2^1166438 is an apocalyptic number.

1166438 is an abundant number, since it is smaller than the sum of its proper divisors (1205242).

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

1166438 is a wasteful number, since it uses less digits than its factorization.

1166438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 68 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1166438 is about 1080.0175924493. The cubic root of 1166438 is about 105.2657816978.

The spelling of 1166438 in words is "one million, one hundred sixty-six thousand, four hundred thirty-eight".