605428 has 6 divisors (see below), whose sum is σ = 1059506. Its totient is φ = 302712.

The previous prime is 605413. The next prime is 605443. The reversal of 605428 is 824506.

It is an interprime number because it is at equal distance from previous prime (605413) and next prime (605443).

It can be written as a sum of positive squares in only one way, i.e., 605284 + 144 = 778^2 + 12^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

605428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 75675 + ... + 75682.

2⁶⁰⁵⁴²⁸ is an apocalyptic number.

It is an amenable number.

605428 is a deficient number, since it is larger than the sum of its proper divisors (454078).

605428 is a wasteful number, since it uses less digits than its factorization.

605428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151361 (or 151359 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 605428 is about 778.0925394836. The cubic root of 605428 is about 84.5968451860.

The spelling of 605428 in words is "six hundred five thousand, four hundred twenty-eight".