4240400014397 has 2 divisors, whose sum is σ = 4240400014398. Its totient is φ = 4240400014396.

The previous prime is 4240400014393. The next prime is 4240400014421. The reversal of 4240400014397 is 7934100040424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2613828826756 + 1626571187641 = 1616734^2 + 1275371^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240400014397 - 2² = 4240400014393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4240400014397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4240400014393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120200007198 + 2120200007199.

It is an arithmetic number, because the mean of its divisors is an integer number (2120200007199).

Almost surely, 2^{4240400014397} is an apocalyptic number.

It is an amenable number.

4240400014397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240400014397 is an equidigital number, since it uses as much as digits as its factorization.

4240400014397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 4240400014397 in words is "four trillion, two hundred forty billion, four hundred million, fourteen thousand, three hundred ninety-seven".