405230 has 24 divisors (see below), whose sum is σ = 849528. Its totient is φ = 138768.

The previous prime is 405227. The next prime is 405239. The reversal of 405230 is 32504.

It is a super-2 number, since 2×405230² = 328422705800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (35397).

2⁴⁰⁵²³⁰ is an apocalyptic number.

405230 is an abundant number, since it is smaller than the sum of its proper divisors (444298).

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

405230 is a wasteful number, since it uses less digits than its factorization.

405230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 405230 is about 636.5767824858. The cubic root of 405230 is about 74.0003652283. Note that the first 3 decimals are identical.

Adding to 405230 its reverse (32504), we get a palindrome (437734).

The spelling of 405230 in words is "four hundred five thousand, two hundred thirty".