42624438 has 16 divisors (see below), whose sum is σ = 87231936. Its totient is φ = 13877640.

The previous prime is 42624437. The next prime is 42624469. The reversal of 42624438 is 83442624.

42624438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42624399 and 42624408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42624437) 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 7 ways as a sum of consecutive naturals, for example, 82348 + ... + 82863.

It is an arithmetic number, because the mean of its divisors is an integer number (5451996).

Almost surely, 2^42624438 is an apocalyptic number.

42624438 is an abundant number, since it is smaller than the sum of its proper divisors (44607498).

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

42624438 is a wasteful number, since it uses less digits than its factorization.

42624438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165259.

The product of its digits is 36864, while the sum is 33.

The square root of 42624438 is about 6528.7393882740. The cubic root of 42624438 is about 349.3168661588.

The spelling of 42624438 in words is "forty-two million, six hundred twenty-four thousand, four hundred thirty-eight".