44290013 has 4 divisors (see below), whose sum is σ = 44913888. Its totient is φ = 43666140.

The previous prime is 44290009. The next prime is 44290021. The reversal of 44290013 is 31009244.

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 44290013 - 2² = 44290009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44290063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311831 + ... + 311972.

It is an arithmetic number, because the mean of its divisors is an integer number (11228472).

Almost surely, 2^44290013 is an apocalyptic number.

It is an amenable number.

44290013 is a deficient number, since it is larger than the sum of its proper divisors (623875).

44290013 is an equidigital number, since it uses as much as digits as its factorization.

44290013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623874.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 44290013 is about 6655.0742294884. The cubic root of 44290013 is about 353.8087772078.

Adding to 44290013 its reverse (31009244), we get a palindrome (75299257).

The spelling of 44290013 in words is "forty-four million, two hundred ninety thousand, thirteen".