428994 has 12 divisors (see below), whose sum is σ = 929526. Its totient is φ = 142992.

The previous prime is 428977. The next prime is 429007. The reversal of 428994 is 499824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 288369 + 140625 = 537^2 + 375^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11899 + ... + 11934.

2⁴²⁸⁹⁹⁴ is an apocalyptic number.

428994 is an abundant number, since it is smaller than the sum of its proper divisors (500532).

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

428994 is a wasteful number, since it uses less digits than its factorization.

428994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23841 (or 23838 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 428994 is about 654.9763354504. The cubic root of 428994 is about 75.4195157123.

The spelling of 428994 in words is "four hundred twenty-eight thousand, nine hundred ninety-four".