405502 has 4 divisors (see below), whose sum is σ = 608256. Its totient is φ = 202750.

The previous prime is 405499. The next prime is 405521. The reversal of 405502 is 205504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101374 + ... + 101377.

It is an arithmetic number, because the mean of its divisors is an integer number (152064).

2⁴⁰⁵⁵⁰² is an apocalyptic number.

405502 is a deficient number, since it is larger than the sum of its proper divisors (202754).

405502 is a wasteful number, since it uses less digits than its factorization.

405502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202753.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 405502 is about 636.7903893747. The cubic root of 405502 is about 74.0169184594.

The spelling of 405502 in words is "four hundred five thousand, five hundred two".