40435013 has 4 divisors (see below), whose sum is σ = 40491360. Its totient is φ = 40378668.

The previous prime is 40434991. The next prime is 40435033. The reversal of 40435013 is 31053404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40435013 - 2¹⁶ = 40369477 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 (40435033) 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, 27083 + ... + 28536.

It is an arithmetic number, because the mean of its divisors is an integer number (10122840).

Almost surely, 2^40435013 is an apocalyptic number.

It is an amenable number.

40435013 is a deficient number, since it is larger than the sum of its proper divisors (56347).

40435013 is an equidigital number, since it uses as much as digits as its factorization.

40435013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56346.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40435013 is about 6358.8531198637. The cubic root of 40435013 is about 343.2304916056.

Adding to 40435013 its reverse (31053404), we get a palindrome (71488417).

The spelling of 40435013 in words is "forty million, four hundred thirty-five thousand, thirteen".