1428418 has 8 divisors (see below), whose sum is σ = 2211840. Its totient is φ = 691140.

The previous prime is 1428409. The next prime is 1428419. The reversal of 1428418 is 8148241.

1428418 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11458 + ... + 11581.

It is an arithmetic number, because the mean of its divisors is an integer number (276480).

2^1428418 is an apocalyptic number.

1428418 is a deficient number, since it is larger than the sum of its proper divisors (783422).

1428418 is a wasteful number, since it uses less digits than its factorization.

1428418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23072.

The product of its digits is 2048, while the sum is 28.

The square root of 1428418 is about 1195.1644238346. The cubic root of 1428418 is about 112.6207559326.

The spelling of 1428418 in words is "one million, four hundred twenty-eight thousand, four hundred eighteen".