40613031 has 18 divisors (see below), whose sum is σ = 59655440. Its totient is φ = 26620776.

The previous prime is 40613011. The next prime is 40613057. The reversal of 40613031 is 13031604.

It is not a de Polignac number, because 40613031 - 2⁶ = 40612967 is a prime.

It is a super-2 number, since 2×40613031² = 3298836574013922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40612995 and 40613013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40613011) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169810 + ... + 170048.

Almost surely, 2^40613031 is an apocalyptic number.

40613031 is a deficient number, since it is larger than the sum of its proper divisors (19042409).

40613031 is an equidigital number, since it uses as much as digits as its factorization.

40613031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 40613031 is about 6372.8353972153. The cubic root of 40613031 is about 343.7334530437.

Adding to 40613031 its reverse (13031604), we get a palindrome (53644635).

The spelling of 40613031 in words is "forty million, six hundred thirteen thousand, thirty-one".