42121076 has 6 divisors (see below), whose sum is σ = 73711890. Its totient is φ = 21060536.

The previous prime is 42121067. The next prime is 42121097. The reversal of 42121076 is 67012124.

42121076 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., 29702500 + 12418576 = 5450^2 + 3524^2 .

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, 5265131 + ... + 5265138.

It is an arithmetic number, because the mean of its divisors is an integer number (12285315).

Almost surely, 2^42121076 is an apocalyptic number.

It is an amenable number.

42121076 is a deficient number, since it is larger than the sum of its proper divisors (31590814).

42121076 is a wasteful number, since it uses less digits than its factorization.

42121076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530273 (or 10530271 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 42121076 is about 6490.0751921684. The cubic root of 42121076 is about 347.9363626094.

The spelling of 42121076 in words is "forty-two million, one hundred twenty-one thousand, seventy-six".