428494 has 8 divisors (see below), whose sum is σ = 701208. Its totient is φ = 194760.

The previous prime is 428489. The next prime is 428503. The reversal of 428494 is 494824.

428494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×428494³ = 236023632452333352, which contains 333 as substring.

It is a plaindrome in base 16.

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, 9717 + ... + 9760.

It is an arithmetic number, because the mean of its divisors is an integer number (87651).

2⁴²⁸⁴⁹⁴ is an apocalyptic number.

428494 is a deficient number, since it is larger than the sum of its proper divisors (272714).

428494 is a wasteful number, since it uses less digits than its factorization.

428494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19490.

The product of its digits is 9216, while the sum is 31.

The square root of 428494 is about 654.5945309885. The cubic root of 428494 is about 75.3902034004.

It can be divided in two parts, 42849 and 4, that multiplied together give a square (171396 = 414²).

The spelling of 428494 in words is "four hundred twenty-eight thousand, four hundred ninety-four".