40162666 has 4 divisors (see below), whose sum is σ = 60244002. Its totient is φ = 20081332.

The previous prime is 40162663. The next prime is 40162673. The reversal of 40162666 is 66626104.

40162666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 39325441 + 837225 = 6271^2 + 915^2 .

It is a super-2 number, since 2×40162666² = 3226079480455112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40162663) 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 as a sum of consecutive naturals, namely, 10040665 + ... + 10040668.

Almost surely, 2^40162666 is an apocalyptic number.

40162666 is a deficient number, since it is larger than the sum of its proper divisors (20081336).

40162666 is a wasteful number, since it uses less digits than its factorization.

40162666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20081335.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40162666 is about 6337.4021491460. The cubic root of 40162666 is about 342.4581539086.

The spelling of 40162666 in words is "forty million, one hundred sixty-two thousand, six hundred sixty-six".