42106956 has 24 divisors (see below), whose sum is σ = 101638320. Its totient is φ = 13551552.

The previous prime is 42106919. The next prime is 42106957. The reversal of 42106956 is 65960124.

It is not an unprimeable number, because it can be changed into a prime (42106957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60151 + ... + 60846.

It is an arithmetic number, because the mean of its divisors is an integer number (4234930).

Almost surely, 2^42106956 is an apocalyptic number.

It is an amenable number.

42106956 is an abundant number, since it is smaller than the sum of its proper divisors (59531364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42106956 is a wasteful number, since it uses less digits than its factorization.

42106956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121033 (or 121031 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 42106956 is about 6488.9872861642. The cubic root of 42106956 is about 347.8974793790.

The spelling of 42106956 in words is "forty-two million, one hundred six thousand, nine hundred fifty-six".