42638476 has 12 divisors (see below), whose sum is σ = 75456360. Its totient is φ = 21079520.

The previous prime is 42638471. The next prime is 42638507. The reversal of 42638476 is 67483624.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42638471) 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, 59530 + ... + 60241.

It is an arithmetic number, because the mean of its divisors is an integer number (6288030).

Almost surely, 2^42638476 is an apocalyptic number.

It is an amenable number.

42638476 is a deficient number, since it is larger than the sum of its proper divisors (32817884).

42638476 is a wasteful number, since it uses less digits than its factorization.

42638476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119864 (or 119862 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 42638476 is about 6529.8143924617. The cubic root of 42638476 is about 349.3552101399.

The spelling of 42638476 in words is "forty-two million, six hundred thirty-eight thousand, four hundred seventy-six".