42061669 has 8 divisors (see below), whose sum is σ = 45379040. Its totient is φ = 38756016.

The previous prime is 42061633. The next prime is 42061681. The reversal of 42061669 is 96616024.

42061669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42061669 - 2⁹ = 42061157 is a prime.

It is a super-2 number, since 2×42061669² = 3538367998131122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061169) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5434 + ... + 10660.

It is an arithmetic number, because the mean of its divisors is an integer number (5672380).

Almost surely, 2^42061669 is an apocalyptic number.

It is an amenable number.

42061669 is a deficient number, since it is larger than the sum of its proper divisors (3317371).

42061669 is a wasteful number, since it uses less digits than its factorization.

42061669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 42061669 is about 6485.4968198281. The cubic root of 42061669 is about 347.7727107232.

The spelling of 42061669 in words is "forty-two million, sixty-one thousand, six hundred sixty-nine".