42436406 has 8 divisors (see below), whose sum is σ = 64421784. Its totient is φ = 20962480.

The previous prime is 42436397. The next prime is 42436409. The reversal of 42436406 is 60463424.

It is a happy number.

42436406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42436409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 127655 + ... + 127986.

It is an arithmetic number, because the mean of its divisors is an integer number (8052723).

Almost surely, 2^42436406 is an apocalyptic number.

42436406 is a deficient number, since it is larger than the sum of its proper divisors (21985378).

42436406 is a wasteful number, since it uses less digits than its factorization.

42436406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255726.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 42436406 is about 6514.3231421231. The cubic root of 42436406 is about 348.8024541375.

The spelling of 42436406 in words is "forty-two million, four hundred thirty-six thousand, four hundred six".