42236404 has 24 divisors (see below), whose sum is σ = 84697088. Its totient is φ = 18053280.

The previous prime is 42236399. The next prime is 42236443. The reversal of 42236404 is 40463224.

42236404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9997 + ... + 13579.

Almost surely, 2^42236404 is an apocalyptic number.

It is an amenable number.

42236404 is an abundant number, since it is smaller than the sum of its proper divisors (42460684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42236404 is a wasteful number, since it uses less digits than its factorization.

42236404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015 (or 4013 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 42236404 is about 6498.9540696946. The cubic root of 42236404 is about 348.2536245100.

Adding to 42236404 its reverse (40463224), we get a palindrome (82699628).

The spelling of 42236404 in words is "forty-two million, two hundred thirty-six thousand, four hundred four".