44398621403 has 4 divisors (see below), whose sum is σ = 44453503080. Its totient is φ = 44343739728.

The previous prime is 44398621369. The next prime is 44398621429. The reversal of 44398621403 is 30412689344.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44398621403 - 2⁶ = 44398621339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44398621303) 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, 27439625 + ... + 27441242.

It is an arithmetic number, because the mean of its divisors is an integer number (11113375770).

Almost surely, 2^44398621403 is an apocalyptic number.

44398621403 is a deficient number, since it is larger than the sum of its proper divisors (54881677).

44398621403 is an equidigital number, since it uses as much as digits as its factorization.

44398621403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54881676.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 44398621403 in words is "forty-four billion, three hundred ninety-eight million, six hundred twenty-one thousand, four hundred three".