42054986 has 16 divisors (see below), whose sum is σ = 64770408. Its totient is φ = 20472000.

The previous prime is 42054973. The next prime is 42055019. The reversal of 42054986 is 68945024.

It can be written as a sum of positive squares in 4 ways, for example, as 41357761 + 697225 = 6431^2 + 835^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10616 + ... + 14028.

Almost surely, 2^42054986 is an apocalyptic number.

42054986 is a deficient number, since it is larger than the sum of its proper divisors (22715422).

42054986 is a wasteful number, since it uses less digits than its factorization.

42054986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 42054986 is about 6484.9815728343. The cubic root of 42054986 is about 347.7542910378.

Adding to 42054986 its sum of digits (38), we get a palindrome (42055024).

The spelling of 42054986 in words is "forty-two million, fifty-four thousand, nine hundred eighty-six".