40632613 has 6 divisors (see below), whose sum is σ = 47266566. Its totient is φ = 34827912.

The previous prime is 40632611. The next prime is 40632617. The reversal of 40632613 is 31623604.

It can be written as a sum of positive squares in only one way, i.e., 34492129 + 6140484 = 5873^2 + 2478^2 .

It is not a de Polignac number, because 40632613 - 2¹ = 40632611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40632611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 414570 + ... + 414667.

It is an arithmetic number, because the mean of its divisors is an integer number (7877761).

Almost surely, 2^40632613 is an apocalyptic number.

It is an amenable number.

40632613 is a deficient number, since it is larger than the sum of its proper divisors (6633953).

40632613 is an equidigital number, since it uses as much as digits as its factorization.

40632613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829251 (or 829244 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 40632613 is about 6374.3715768694. The cubic root of 40632613 is about 343.7886890669.

Subtracting from 40632613 its reverse (31623604), we obtain a palindrome (9009009).

The spelling of 40632613 in words is "forty million, six hundred thirty-two thousand, six hundred thirteen".