244421331 has 48 divisors (see below), whose sum is σ = 419096832. Its totient is φ = 123963840.

The previous prime is 244421321. The next prime is 244421341. The reversal of 244421331 is 133124442.

244421331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (244421321) and next prime (244421341).

It is not a de Polignac number, because 244421331 - 2¹⁸ = 244159187 is a prime.

It is a super-2 number, since 2×244421331² = 119483574095623122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (244421311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108145 + ... + 110381.

It is an arithmetic number, because the mean of its divisors is an integer number (8731184).

Almost surely, 2^244421331 is an apocalyptic number.

244421331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

244421331 is a deficient number, since it is larger than the sum of its proper divisors (174675501).

244421331 is a wasteful number, since it uses less digits than its factorization.

244421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2301 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 244421331 is about 15633.9800115006. The cubic root of 244421331 is about 625.2394440414.

Adding to 244421331 its reverse (133124442), we get a palindrome (377545773).

The spelling of 244421331 in words is "two hundred forty-four million, four hundred twenty-one thousand, three hundred thirty-one".