400200242 has 16 divisors (see below), whose sum is σ = 649192320. Its totient is φ = 183932112.

The previous prime is 400200239. The next prime is 400200259. The reversal of 400200242 is 242002004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25988 + ... + 38415.

It is an arithmetic number, because the mean of its divisors is an integer number (40574520).

Almost surely, 2^400200242 is an apocalyptic number.

400200242 is a deficient number, since it is larger than the sum of its proper divisors (248992078).

400200242 is a wasteful number, since it uses less digits than its factorization.

400200242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64657.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 400200242 is about 20005.0054236434. The cubic root of 400200242 is about 736.9292288566.

Adding to 400200242 its reverse (242002004), we get a palindrome (642202246).

The spelling of 400200242 in words is "four hundred million, two hundred thousand, two hundred forty-two".