42419642 has 4 divisors (see below), whose sum is σ = 63629466. Its totient is φ = 21209820.

The previous prime is 42419621. The next prime is 42419681. The reversal of 42419642 is 24691424.

42419642 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 can be written as a sum of positive squares in only one way, i.e., 36372961 + 6046681 = 6031^2 + 2459^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42419599 and 42419608.

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, 10604909 + ... + 10604912.

Almost surely, 2^42419642 is an apocalyptic number.

42419642 is a deficient number, since it is larger than the sum of its proper divisors (21209824).

42419642 is a wasteful number, since it uses less digits than its factorization.

42419642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21209823.

The product of its digits is 13824, while the sum is 32.

The square root of 42419642 is about 6513.0363118902. The cubic root of 42419642 is about 348.7565179942.

The spelling of 42419642 in words is "forty-two million, four hundred nineteen thousand, six hundred forty-two".