1428164 has 12 divisors (see below), whose sum is σ = 2509584. Its totient is φ = 711144.

The previous prime is 1428157. The next prime is 1428169. The reversal of 1428164 is 4618241.

It is not an unprimeable number, because it can be changed into a prime (1428169) 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, 647 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (209132).

2^1428164 is an apocalyptic number.

It is an amenable number.

1428164 is a deficient number, since it is larger than the sum of its proper divisors (1081420).

1428164 is a wasteful number, since it uses less digits than its factorization.

1428164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474 (or 1472 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1428164 is about 1195.0581575806. The cubic root of 1428164 is about 112.6140801632.

The spelling of 1428164 in words is "one million, four hundred twenty-eight thousand, one hundred sixty-four".