1628146 has 12 divisors (see below), whose sum is σ = 2645082. Its totient is φ = 751296.

The previous prime is 1628131. The next prime is 1628149. The reversal of 1628146 is 6418261.

It can be written as a sum of positive squares in 3 ways, for example, as 442225 + 1185921 = 665^2 + 1089^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2071 + ... + 2746.

2^1628146 is an apocalyptic number.

1628146 is a deficient number, since it is larger than the sum of its proper divisors (1016936).

1628146 is a wasteful number, since it uses less digits than its factorization.

1628146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845 (or 4832 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1628146 is about 1275.9882444600. The cubic root of 1628146 is about 117.6425552100.

The spelling of 1628146 in words is "one million, six hundred twenty-eight thousand, one hundred forty-six".