185428 has 12 divisors (see below), whose sum is σ = 327712. Its totient is φ = 91800.

The previous prime is 185401. The next prime is 185429. The reversal of 185428 is 824581.

It is a junction number, because it is equal to n+sod(n) for n = 185396 and 185405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451 + ... + 757.

2¹⁸⁵⁴²⁸ is an apocalyptic number.

It is an amenable number.

185428 is a deficient number, since it is larger than the sum of its proper divisors (142284).

185428 is a wasteful number, since it uses less digits than its factorization.

185428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 185428 is about 430.6135158120. The cubic root of 185428 is about 57.0240997916.

The spelling of 185428 in words is "one hundred eighty-five thousand, four hundred twenty-eight".