2044520231 has 4 divisors (see below), whose sum is σ = 2201791032. Its totient is φ = 1887249432.

The previous prime is 2044520221. The next prime is 2044520263. The reversal of 2044520231 is 1320254402.

It is a happy number.

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 2044520231 - 2¹⁸ = 2044258087 is a prime.

It is a super-2 number, since 2×2044520231² = 8360125949936586722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2044520197 and 2044520206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044520201) 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, 78635381 + ... + 78635406.

It is an arithmetic number, because the mean of its divisors is an integer number (550447758).

Almost surely, 2^2044520231 is an apocalyptic number.

2044520231 is a deficient number, since it is larger than the sum of its proper divisors (157270801).

2044520231 is a wasteful number, since it uses less digits than its factorization.

2044520231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157270800.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2044520231 is about 45216.3712719188. The cubic root of 2044520231 is about 1269.2011904771.

Adding to 2044520231 its reverse (1320254402), we get a palindrome (3364774633).

The spelling of 2044520231 in words is "two billion, forty-four million, five hundred twenty thousand, two hundred thirty-one".