1662146 has 4 divisors (see below), whose sum is σ = 2493222. Its totient is φ = 831072.

The previous prime is 1662121. The next prime is 1662149. The reversal of 1662146 is 6412661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 625 = 1289^2 + 25^2 .

It is not an unprimeable number, because it can be changed into a prime (1662149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415535 + ... + 415538.

2^1662146 is an apocalyptic number.

1662146 is a deficient number, since it is larger than the sum of its proper divisors (831076).

1662146 is an equidigital number, since it uses as much as digits as its factorization.

1662146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831075.

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

The square root of 1662146 is about 1289.2424132024. The cubic root of 1662146 is about 118.4558162231.

The spelling of 1662146 in words is "one million, six hundred sixty-two thousand, one hundred forty-six".