42092986 has 16 divisors (see below), whose sum is σ = 71996904. Its totient is φ = 18284544.

The previous prime is 42092983. The next prime is 42092993. The reversal of 42092986 is 68929024.

It can be written as a sum of positive squares in 4 ways, for example, as 29975625 + 12117361 = 5475^2 + 3481^2 .

It is not an unprimeable number, because it can be changed into a prime (42092983) by changing a digit.

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, 47175 + ... + 48058.

Almost surely, 2^42092986 is an apocalyptic number.

42092986 is a deficient number, since it is larger than the sum of its proper divisors (29903918).

42092986 is a wasteful number, since it uses less digits than its factorization.

42092986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95265.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 42092986 is about 6487.9107577093. The cubic root of 42092986 is about 347.8590006585.

The spelling of 42092986 in words is "forty-two million, ninety-two thousand, nine hundred eighty-six".