4001423242 has 8 divisors (see below), whose sum is σ = 6064012836. Its totient is φ = 1980085632.

The previous prime is 4001423227. The next prime is 4001423273. The reversal of 4001423242 is 2423241004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3896381241 + 105042001 = 62421^2 + 10249^2 .

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

It is a super-2 number, since 2×4001423242² = 32022775923235581128, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10312753 + ... + 10313140.

Almost surely, 2^4001423242 is an apocalyptic number.

4001423242 is a deficient number, since it is larger than the sum of its proper divisors (2062589594).

4001423242 is a wasteful number, since it uses less digits than its factorization.

4001423242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20625992.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4001423242 is about 63256.8039186300. The cubic root of 4001423242 is about 1587.5893009636.

Adding to 4001423242 its reverse (2423241004), we get a palindrome (6424664246).

The spelling of 4001423242 in words is "four billion, one million, four hundred twenty-three thousand, two hundred forty-two".