406042115 has 16 divisors (see below), whose sum is σ = 509027328. Its totient is φ = 310348896.

The previous prime is 406042111. The next prime is 406042121. The reversal of 406042115 is 511240604.

406042115 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 406042115 - 2² = 406042111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406042111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139202 + ... + 142088.

It is an arithmetic number, because the mean of its divisors is an integer number (31814208).

Almost surely, 2^406042115 is an apocalyptic number.

406042115 is a deficient number, since it is larger than the sum of its proper divisors (102985213).

406042115 is a wasteful number, since it uses less digits than its factorization.

406042115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 406042115 is about 20150.4867186875. The cubic root of 406042115 is about 740.4976655996.

Adding to 406042115 its reverse (511240604), we get a palindrome (917282719).

The spelling of 406042115 in words is "four hundred six million, forty-two thousand, one hundred fifteen".