405435042 has 24 divisors (see below), whose sum is σ = 878816640. Its totient is φ = 135087480.

The previous prime is 405435013. The next prime is 405435067. The reversal of 405435042 is 240534504.

It is a junction number, because it is equal to n+sod(n) for n = 405434997 and 405435015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71259 + ... + 76737.

It is an arithmetic number, because the mean of its divisors is an integer number (36617360).

Almost surely, 2^405435042 is an apocalyptic number.

405435042 is an abundant number, since it is smaller than the sum of its proper divisors (473381598).

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

405435042 is a wasteful number, since it uses less digits than its factorization.

405435042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9598 (or 9595 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 405435042 is about 20135.4176018279. The cubic root of 405435042 is about 740.1284425210.

Adding to 405435042 its reverse (240534504), we get a palindrome (645969546).

The spelling of 405435042 in words is "four hundred five million, four hundred thirty-five thousand, forty-two".