4400391013 has 4 divisors (see below), whose sum is σ = 4631990560. Its totient is φ = 4168791468.

The previous prime is 4400390989. The next prime is 4400391031. The reversal of 4400391013 is 3101930044.

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 4400391013 - 2¹³ = 4400382821 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 (4400391053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115799745 + ... + 115799782.

It is an arithmetic number, because the mean of its divisors is an integer number (1157997640).

Almost surely, 2^4400391013 is an apocalyptic number.

It is an amenable number.

4400391013 is a deficient number, since it is larger than the sum of its proper divisors (231599547).

4400391013 is a wasteful number, since it uses less digits than its factorization.

4400391013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231599546.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 4400391013 is about 66335.4431130146. The cubic root of 4400391013 is about 1638.6910799556.

The spelling of 4400391013 in words is "four billion, four hundred million, three hundred ninety-one thousand, thirteen".