2404218391 has 2 divisors, whose sum is σ = 2404218392. Its totient is φ = 2404218390.

The previous prime is 2404218367. The next prime is 2404218431. The reversal of 2404218391 is 1938124042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2404218391 - 2⁷ = 2404218263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2404218491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202109195 + 1202109196.

It is an arithmetic number, because the mean of its divisors is an integer number (1202109196).

Almost surely, 2^2404218391 is an apocalyptic number.

2404218391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2404218391 is an equidigital number, since it uses as much as digits as its factorization.

2404218391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2404218391 is about 49032.8297266230. The cubic root of 2404218391 is about 1339.6498660087.

The spelling of 2404218391 in words is "two billion, four hundred four million, two hundred eighteen thousand, three hundred ninety-one".