40731011 has 8 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 40217472.

The previous prime is 40731001. The next prime is 40731017. The reversal of 40731011 is 11013704.

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

It is a cyclic number.

It is not a de Polignac number, because 40731011 - 2²² = 36536707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40731017) 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, 46766 + ... + 47628.

It is an arithmetic number, because the mean of its divisors is an integer number (5155920).

Almost surely, 2^40731011 is an apocalyptic number.

40731011 is a deficient number, since it is larger than the sum of its proper divisors (516349).

40731011 is a wasteful number, since it uses less digits than its factorization.

40731011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 40731011 is about 6382.0851608232. The cubic root of 40731011 is about 344.0659774073.

Adding to 40731011 its reverse (11013704), we get a palindrome (51744715).

The spelling of 40731011 in words is "forty million, seven hundred thirty-one thousand, eleven".