2240344440 has 128 divisors (see below), whose sum is σ = 7792588800. Its totient is φ = 571443840.

The previous prime is 2240344433. The next prime is 2240344501. The reversal of 2240344440 is 444430422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20256 + ... + 69935.

It is an arithmetic number, because the mean of its divisors is an integer number (60879600).

Almost surely, 2^2240344440 is an apocalyptic number.

2240344440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240344440 is an abundant number, since it is smaller than the sum of its proper divisors (5552244360).

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

2240344440 is a wasteful number, since it uses less digits than its factorization.

2240344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90234 (or 90224 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 2240344440 is about 47332.2769365683. The cubic root of 2240344440 is about 1308.4935852859.

Adding to 2240344440 its reverse (444430422), we get a palindrome (2684774862).

The spelling of 2240344440 in words is "two billion, two hundred forty million, three hundred forty-four thousand, four hundred forty".