2240226640 has 40 divisors (see below), whose sum is σ = 5262241320. Its totient is φ = 886849536.

The previous prime is 2240226607. The next prime is 2240226641. The reversal of 2240226640 is 466220422.

It can be written as a sum of positive squares in 4 ways, for example, as 273836304 + 1966390336 = 16548^2 + 44344^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2240226599 and 2240226608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240226641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136585 + ... + 152104.

It is an arithmetic number, because the mean of its divisors is an integer number (131556033).

Almost surely, 2^2240226640 is an apocalyptic number.

2240226640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240226640 is an abundant number, since it is smaller than the sum of its proper divisors (3022014680).

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

2240226640 is a wasteful number, since it uses less digits than its factorization.

2240226640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288799 (or 288793 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 2240226640 is about 47331.0325262401. The cubic root of 2240226640 is about 1308.4706508294.

The spelling of 2240226640 in words is "two billion, two hundred forty million, two hundred twenty-six thousand, six hundred forty".