40311005 has 32 divisors (see below), whose sum is σ = 58226688. Its totient is φ = 26208000.

The previous prime is 40310993. The next prime is 40311013. The reversal of 40311005 is 50011304.

It is not a de Polignac number, because 40311005 - 2¹⁰ = 40309981 is a prime.

It is a super-2 number, since 2×40311005² = 3249954248220050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57155 + ... + 57855.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 2^40311005 is an apocalyptic number.

It is an amenable number.

40311005 is a deficient number, since it is larger than the sum of its proper divisors (17915683).

40311005 is a wasteful number, since it uses less digits than its factorization.

40311005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 40311005 is about 6349.0948173736. The cubic root of 40311005 is about 342.8792538237.

Adding to 40311005 its reverse (50011304), we get a palindrome (90322309).

The spelling of 40311005 in words is "forty million, three hundred eleven thousand, five".