2240456840 has 16 divisors (see below), whose sum is σ = 5041027980. Its totient is φ = 896182720.

The previous prime is 2240456807. The next prime is 2240456851. The reversal of 2240456840 is 486540422.

It can be written as a sum of positive squares in 2 ways, for example, as 2157974116 + 82482724 = 46454^2 + 9082^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2240456840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28005671 + ... + 28005750.

Almost surely, 2^2240456840 is an apocalyptic number.

2240456840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240456840 is an abundant number, since it is smaller than the sum of its proper divisors (2800571140).

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

2240456840 is a wasteful number, since it uses less digits than its factorization.

2240456840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56011432 (or 56011428 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 2240456840 is about 47333.4642721194. The cubic root of 2240456840 is about 1308.5154676680.

The spelling of 2240456840 in words is "two billion, two hundred forty million, four hundred fifty-six thousand, eight hundred forty".