1428494 has 4 divisors (see below), whose sum is σ = 2142744. Its totient is φ = 714246.

The previous prime is 1428491. The next prime is 1428521. The reversal of 1428494 is 4948241.

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

It is a super-3 number, since 3×1428494³ = 8744933604776333352, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1428494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357122 + ... + 357125.

It is an arithmetic number, because the mean of its divisors is an integer number (535686).

2^1428494 is an apocalyptic number.

1428494 is a deficient number, since it is larger than the sum of its proper divisors (714250).

1428494 is an equidigital number, since it uses as much as digits as its factorization.

1428494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714249.

The product of its digits is 9216, while the sum is 32.

The square root of 1428494 is about 1195.1962182002. The cubic root of 1428494 is about 112.6227532531.

The spelling of 1428494 in words is "one million, four hundred twenty-eight thousand, four hundred ninety-four".