40422986 has 4 divisors (see below), whose sum is σ = 60634482. Its totient is φ = 20211492.

The previous prime is 40422973. The next prime is 40422989. The reversal of 40422986 is 68922404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33235225 + 7187761 = 5765^2 + 2681^2 .

It is not an unprimeable number, because it can be changed into a prime (40422989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105745 + ... + 10105748.

Almost surely, 2^40422986 is an apocalyptic number.

40422986 is a deficient number, since it is larger than the sum of its proper divisors (20211496).

40422986 is a wasteful number, since it uses less digits than its factorization.

40422986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211495.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40422986 is about 6357.9073601304. The cubic root of 40422986 is about 343.1964580443.

The spelling of 40422986 in words is "forty million, four hundred twenty-two thousand, nine hundred eighty-six".