42638054 has 4 divisors (see below), whose sum is σ = 63957084. Its totient is φ = 21319026.

The previous prime is 42638047. The next prime is 42638077. The reversal of 42638054 is 45083624.

42638054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42638054.

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 as a sum of consecutive naturals, namely, 10659512 + ... + 10659515.

It is an arithmetic number, because the mean of its divisors is an integer number (15989271).

Almost surely, 2^42638054 is an apocalyptic number.

42638054 is a deficient number, since it is larger than the sum of its proper divisors (21319030).

42638054 is a wasteful number, since it uses less digits than its factorization.

42638054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21319029.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 42638054 is about 6529.7820790590. The cubic root of 42638054 is about 349.3540575941.

The spelling of 42638054 in words is "forty-two million, six hundred thirty-eight thousand, fifty-four".