1428323 has 16 divisors (see below), whose sum is σ = 1705536. Its totient is φ = 1182720.

The previous prime is 1428281. The next prime is 1428359. The reversal of 1428323 is 3238241.

It is a cyclic number.

It is not a de Polignac number, because 1428323 - 2¹⁶ = 1362787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4943 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (106596).

2^1428323 is an apocalyptic number.

1428323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1428323 is a deficient number, since it is larger than the sum of its proper divisors (277213).

1428323 is a wasteful number, since it uses less digits than its factorization.

1428323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its digits is 1152, while the sum is 23.

The square root of 1428323 is about 1195.1246796883. The cubic root of 1428323 is about 112.6182591823.

It can be divided in two parts, 14283 and 23, that multiplied together give a cube (328509 = 69³).

The spelling of 1428323 in words is "one million, four hundred twenty-eight thousand, three hundred twenty-three".