1428918 has 16 divisors (see below), whose sum is σ = 3026160. Its totient is φ = 448256.

The previous prime is 1428899. The next prime is 1428923. The reversal of 1428918 is 8198241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6903 + ... + 7106.

It is an arithmetic number, because the mean of its divisors is an integer number (189135).

2^1428918 is an apocalyptic number.

1428918 is an abundant number, since it is smaller than the sum of its proper divisors (1597242).

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

1428918 is a wasteful number, since it uses less digits than its factorization.

1428918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14031.

The product of its digits is 4608, while the sum is 33.

The square root of 1428918 is about 1195.3735817727. The cubic root of 1428918 is about 112.6338948992.

It can be divided in two parts, 1428 and 918, that added together give a triangular number (2346 = T₆₈).

The spelling of 1428918 in words is "one million, four hundred twenty-eight thousand, nine hundred eighteen".