409336042 has 8 divisors (see below), whose sum is σ = 614432736. Its totient is φ = 204525132.

The previous prime is 409336033. The next prime is 409336061. The reversal of 409336042 is 240633904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 409335995 and 409336013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67828 + ... + 73615.

It is an arithmetic number, because the mean of its divisors is an integer number (76804092).

Almost surely, 2^409336042 is an apocalyptic number.

409336042 is a deficient number, since it is larger than the sum of its proper divisors (205096694).

409336042 is a wasteful number, since it uses less digits than its factorization.

409336042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142892.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 409336042 is about 20232.0548140815. The cubic root of 409336042 is about 742.4946498649.

Adding to 409336042 its reverse (240633904), we get a palindrome (649969946).

The spelling of 409336042 in words is "four hundred nine million, three hundred thirty-six thousand, forty-two".