405435044 has 24 divisors (see below), whose sum is σ = 817067328. Its totient is φ = 172429920.

The previous prime is 405435013. The next prime is 405435067. The reversal of 405435044 is 440534504.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 405434998 and 405435016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51599 + ... + 58934.

It is an arithmetic number, because the mean of its divisors is an integer number (34044472).

Almost surely, 2^405435044 is an apocalyptic number.

It is an amenable number.

405435044 is an abundant number, since it is smaller than the sum of its proper divisors (411632284).

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

405435044 is a wasteful number, since it uses less digits than its factorization.

405435044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110675 (or 110673 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 405435044 is about 20135.4176514916. The cubic root of 405435044 is about 740.1284437380.

Adding to 405435044 its reverse (440534504), we get a palindrome (845969548).

The spelling of 405435044 in words is "four hundred five million, four hundred thirty-five thousand, forty-four".