400232242 has 16 divisors (see below), whose sum is σ = 616184352. Its totient is φ = 194856480.

The previous prime is 400232237. The next prime is 400232251. The reversal of 400232242 is 242232004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40393 + ... + 49315.

It is an arithmetic number, because the mean of its divisors is an integer number (38511522).

Almost surely, 2^400232242 is an apocalyptic number.

400232242 is a deficient number, since it is larger than the sum of its proper divisors (215952110).

400232242 is a wasteful number, since it uses less digits than its factorization.

400232242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 400232242 is about 20005.8052074892. The cubic root of 400232242 is about 736.9488699465.

Adding to 400232242 its reverse (242232004), we get a palindrome (642464246).

The spelling of 400232242 in words is "four hundred million, two hundred thirty-two thousand, two hundred forty-two".