42039796 has 6 divisors (see below), whose sum is σ = 73569650. Its totient is φ = 21019896.

The previous prime is 42039779. The next prime is 42039841. The reversal of 42039796 is 69793024.

42039796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24700900 + 17338896 = 4970^2 + 4164^2 .

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, 5254971 + ... + 5254978.

Almost surely, 2^42039796 is an apocalyptic number.

It is an amenable number.

42039796 is a deficient number, since it is larger than the sum of its proper divisors (31529854).

42039796 is a wasteful number, since it uses less digits than its factorization.

42039796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10509953 (or 10509951 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 42039796 is about 6483.8102995075. The cubic root of 42039796 is about 347.7124170985.

The spelling of 42039796 in words is "forty-two million, thirty-nine thousand, seven hundred ninety-six".