42231404 has 12 divisors (see below), whose sum is σ = 77118384. Its totient is φ = 20197584.

The previous prime is 42231403. The next prime is 42231491. The reversal of 42231404 is 40413224.

It is a super-2 number, since 2×42231404² = 3566982967622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42231403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229427 + ... + 229610.

It is an arithmetic number, because the mean of its divisors is an integer number (6426532).

Almost surely, 2^42231404 is an apocalyptic number.

It is an amenable number.

42231404 is a deficient number, since it is larger than the sum of its proper divisors (34886980).

42231404 is a wasteful number, since it uses less digits than its factorization.

42231404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459064 (or 459062 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42231404 is about 6498.5693810253. The cubic root of 42231404 is about 348.2398817299.

Adding to 42231404 its reverse (40413224), we get a palindrome (82644628).

The spelling of 42231404 in words is "forty-two million, two hundred thirty-one thousand, four hundred four".