406501242 has 32 divisors (see below), whose sum is σ = 938176512. Its totient is φ = 115014384.

The previous prime is 406501187. The next prime is 406501243. The reversal of 406501242 is 242105604.

It is not an unprimeable number, because it can be changed into a prime (406501243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42658 + ... + 51309.

It is an arithmetic number, because the mean of its divisors is an integer number (29318016).

Almost surely, 2^406501242 is an apocalyptic number.

406501242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

406501242 is an abundant number, since it is smaller than the sum of its proper divisors (531675270).

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

406501242 is a wasteful number, since it uses less digits than its factorization.

406501242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94082.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 406501242 is about 20161.8759543848. The cubic root of 406501242 is about 740.7766632667.

Adding to 406501242 its reverse (242105604), we get a palindrome (648606846).

The spelling of 406501242 in words is "four hundred six million, five hundred one thousand, two hundred forty-two".