1662046 has 4 divisors (see below), whose sum is σ = 2493072.
Its totient is φ = 831022.
The previous prime is 1662041. The next prime is 1662083. The reversal of 1662046 is 6402661.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a super-2 number, since 2×16620462 = 5524793812232, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1662046.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1662041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415510 + ... + 415513.
It is an arithmetic number, because the mean of its divisors is an integer number (623268).
21662046 is an apocalyptic number.
1662046 is a deficient number, since it is larger than the sum of its proper divisors (831026).
1662046 is an equidigital number, since it uses as much as digits as its factorization.
1662046 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 831025.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 1662046 is about 1289.2036301531.
The cubic root of 1662046 is about 118.4534406157.
The spelling of 1662046 in words is "one million, six hundred sixty-two thousand, forty-six".