1166642 has 8 divisors (see below), whose sum is σ = 1852956. Its totient is φ = 548992.

The previous prime is 1166639. The next prime is 1166663. The reversal of 1166642 is 2466611.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1164241 + 2401 = 1079^2 + 49^2 .

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

It is a super-2 number, since 2×1166642² = 2722107112328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17123 + ... + 17190.

2^1166642 is an apocalyptic number.

1166642 is a deficient number, since it is larger than the sum of its proper divisors (686314).

1166642 is a wasteful number, since it uses less digits than its factorization.

1166642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34332.

The product of its digits is 1728, while the sum is 26.

The square root of 1166642 is about 1080.1120312264. The cubic root of 1166642 is about 105.2719180341.

The spelling of 1166642 in words is "one million, one hundred sixty-six thousand, six hundred forty-two".