40067806 has 8 divisors (see below), whose sum is σ = 60128640. Its totient is φ = 20024928.

The previous prime is 40067803. The next prime is 40067831. The reversal of 40067806 is 60876004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40067803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5910 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (7516080).

Almost surely, 2^40067806 is an apocalyptic number.

40067806 is a deficient number, since it is larger than the sum of its proper divisors (20060834).

40067806 is a wasteful number, since it uses less digits than its factorization.

40067806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 40067806 is about 6329.9135855081. The cubic root of 40067806 is about 342.1883246271.

The spelling of 40067806 in words is "forty million, sixty-seven thousand, eight hundred six".