440662013 has 4 divisors (see below), whose sum is σ = 480722208. Its totient is φ = 400601820.

The previous prime is 440662009. The next prime is 440662043. The reversal of 440662013 is 310266044.

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 440662013 - 2² = 440662009 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 (440662043) 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, 20030081 + ... + 20030102.

It is an arithmetic number, because the mean of its divisors is an integer number (120180552).

Almost surely, 2^440662013 is an apocalyptic number.

It is an amenable number.

440662013 is a deficient number, since it is larger than the sum of its proper divisors (40060195).

440662013 is a wasteful number, since it uses less digits than its factorization.

440662013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40060194.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 440662013 is about 20991.9511479996. The cubic root of 440662013 is about 760.9717561493.

The spelling of 440662013 in words is "four hundred forty million, six hundred sixty-two thousand, thirteen".