2240004397 has 2 divisors, whose sum is σ = 2240004398. Its totient is φ = 2240004396.

The previous prime is 2240004379. The next prime is 2240004409. The reversal of 2240004397 is 7934000422.

Together with previous prime (2240004379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2081093161 + 158911236 = 45619^2 + 12606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240004397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240004097) 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 as a sum of consecutive naturals, namely, 1120002198 + 1120002199.

It is an arithmetic number, because the mean of its divisors is an integer number (1120002199).

Almost surely, 2^2240004397 is an apocalyptic number.

It is an amenable number.

2240004397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240004397 is an equidigital number, since it uses as much as digits as its factorization.

2240004397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 2240004397 is about 47328.6847165649. The cubic root of 2240004397 is about 1308.4273801986.

The spelling of 2240004397 in words is "two billion, two hundred forty million, four thousand, three hundred ninety-seven".