2240469721 has 32 divisors (see below), whose sum is σ = 2878064640. Its totient is φ = 1699657344.

The previous prime is 2240469697. The next prime is 2240469739. The reversal of 2240469721 is 1279640422.

2240469721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2240469721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240469761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123021 + ... + 140053.

It is an arithmetic number, because the mean of its divisors is an integer number (89939520).

Almost surely, 2^2240469721 is an apocalyptic number.

It is an amenable number.

2240469721 is a deficient number, since it is larger than the sum of its proper divisors (637594919).

2240469721 is a wasteful number, since it uses less digits than its factorization.

2240469721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17125.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2240469721 is about 47333.6003384488. The cubic root of 2240469721 is about 1308.5179753345.

The spelling of 2240469721 in words is "two billion, two hundred forty million, four hundred sixty-nine thousand, seven hundred twenty-one".