244444440 has 32 divisors (see below), whose sum is σ = 733333680. Its totient is φ = 65185152.

The previous prime is 244444433. The next prime is 244444457. The reversal of 244444440 is 44444442.

244444440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 244444398 and 244444407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018399 + ... + 1018638.

Almost surely, 2^244444440 is an apocalyptic number.

244444440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244444440 is an abundant number, since it is smaller than the sum of its proper divisors (488889240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

244444440 is a wasteful number, since it uses less digits than its factorization.

244444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037051 (or 2037047 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

The square root of 244444440 is about 15634.7190572776. The cubic root of 244444440 is about 625.2591479995.

Adding to 244444440 its reverse (44444442), we get a palindrome (288888882).

The spelling of 244444440 in words is "two hundred forty-four million, four hundred forty-four thousand, four hundred forty".