1428694 has 8 divisors (see below), whose sum is σ = 2148120. Its totient is φ = 712656.

The previous prime is 1428689. The next prime is 1428703. The reversal of 1428694 is 4968241.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (268515).

2^1428694 is an apocalyptic number.

1428694 is a deficient number, since it is larger than the sum of its proper divisors (719426).

1428694 is an equidigital number, since it uses as much as digits as its factorization.

1428694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its digits is 13824, while the sum is 34.

The square root of 1428694 is about 1195.2798835419. The cubic root of 1428694 is about 112.6280090212.

It can be divided in two parts, 142 and 8694, that added together give a square (8836 = 94²).

The spelling of 1428694 in words is "one million, four hundred twenty-eight thousand, six hundred ninety-four".