1428364 has 24 divisors (see below), whose sum is σ = 2885120. Its totient is φ = 606096.

The previous prime is 1428359. The next prime is 1428389. The reversal of 1428364 is 4638241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3709 + ... + 4075.

2^1428364 is an apocalyptic number.

1428364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1428364 is an abundant number, since it is smaller than the sum of its proper divisors (1456756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428364 is a wasteful number, since it uses less digits than its factorization.

1428364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 1428364 is about 1195.1418325872. The cubic root of 1428364 is about 112.6193367408.

The spelling of 1428364 in words is "one million, four hundred twenty-eight thousand, three hundred sixty-four".