40210013 has 4 divisors (see below), whose sum is σ = 40326240. Its totient is φ = 40093788.

The previous prime is 40209989. The next prime is 40210039. The reversal of 40210013 is 31001204.

It is a happy number.

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 40210013 - 2¹⁰ = 40208989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40209976 and 40210003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210063) 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, 57593 + ... + 58286.

It is an arithmetic number, because the mean of its divisors is an integer number (10081560).

Almost surely, 2^40210013 is an apocalyptic number.

It is an amenable number.

40210013 is a deficient number, since it is larger than the sum of its proper divisors (116227).

40210013 is a wasteful number, since it uses less digits than its factorization.

40210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116226.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40210013 is about 6341.1365700480. The cubic root of 40210013 is about 342.5926735209.

Adding to 40210013 its reverse (31001204), we get a palindrome (71211217).

The spelling of 40210013 in words is "forty million, two hundred ten thousand, thirteen".