1116642 has 8 divisors (see below), whose sum is σ = 2233296. Its totient is φ = 372212.

The previous prime is 1116641. The next prime is 1116653. The reversal of 1116642 is 2466111.

It is a sphenic number, since it is the product of 3 distinct primes.

1116642 is an admirable number.

It is a super-3 number, since 3×1116642³ = 4176987073337043864, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1116641) 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, 93048 + ... + 93059.

It is an arithmetic number, because the mean of its divisors is an integer number (279162).

2^1116642 is an apocalyptic number.

1116642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1116642 is a wasteful number, since it uses less digits than its factorization.

1116642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186112.

The product of its digits is 288, while the sum is 21.

The square root of 1116642 is about 1056.7128275932. The cubic root of 1116642 is about 103.7459900710.

It can be divided in two parts, 11 and 16642, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 1116642 in words is "one million, one hundred sixteen thousand, six hundred forty-two".