40067158 has 4 divisors (see below), whose sum is σ = 60100740. Its totient is φ = 20033578.

The previous prime is 40067149. The next prime is 40067197. The reversal of 40067158 is 85176004.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10016788 + ... + 10016791.

It is an arithmetic number, because the mean of its divisors is an integer number (15025185).

Almost surely, 2^40067158 is an apocalyptic number.

40067158 is a deficient number, since it is larger than the sum of its proper divisors (20033582).

40067158 is a wasteful number, since it uses less digits than its factorization.

40067158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033581.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 40067158 is about 6329.8623997683. The cubic root of 40067158 is about 342.1864799272.

The spelling of 40067158 in words is "forty million, sixty-seven thousand, one hundred fifty-eight".