401205242 has 8 divisors (see below), whose sum is σ = 603109056. Its totient is φ = 200168892.

The previous prime is 401205223. The next prime is 401205271. The reversal of 401205242 is 242502104.

It is a happy number.

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

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, 215708 + ... + 217559.

It is an arithmetic number, because the mean of its divisors is an integer number (75388632).

Almost surely, 2^401205242 is an apocalyptic number.

401205242 is a deficient number, since it is larger than the sum of its proper divisors (201903814).

401205242 is a wasteful number, since it uses less digits than its factorization.

401205242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433732.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 401205242 is about 20030.1083871256. The cubic root of 401205242 is about 737.5455826274.

Adding to 401205242 its reverse (242502104), we get a palindrome (643707346).

The spelling of 401205242 in words is "four hundred one million, two hundred five thousand, two hundred forty-two".