2240742737 has 4 divisors (see below), whose sum is σ = 2243135076. Its totient is φ = 2238350400.

The previous prime is 2240742703. The next prime is 2240742761. The reversal of 2240742737 is 7372470422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 826907536 + 1413835201 = 28756^2 + 37601^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240742737 - 2⁸ = 2240742481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2240742737.

It is not an unprimeable number, because it can be changed into a prime (2240742337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194764 + ... + 1196637.

It is an arithmetic number, because the mean of its divisors is an integer number (560783769).

Almost surely, 2^2240742737 is an apocalyptic number.

It is an amenable number.

2240742737 is a deficient number, since it is larger than the sum of its proper divisors (2392339).

2240742737 is an equidigital number, since it uses as much as digits as its factorization.

2240742737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392338.

The product of its (nonzero) digits is 131712, while the sum is 38.

The square root of 2240742737 is about 47336.4842061596. The cubic root of 2240742737 is about 1308.5711236885.

The spelling of 2240742737 in words is "two billion, two hundred forty million, seven hundred forty-two thousand, seven hundred thirty-seven".