2420400244387 has 2 divisors, whose sum is σ = 2420400244388. Its totient is φ = 2420400244386.

The previous prime is 2420400244373. The next prime is 2420400244441. The reversal of 2420400244387 is 7834420040242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2420400244387 - 2³¹ = 2418252760739 is a prime.

It is a super-3 number, since 3×2420400244387³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2420400244187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210200122193 + 1210200122194.

It is an arithmetic number, because the mean of its divisors is an integer number (1210200122194).

Almost surely, 2^{2420400244387} is an apocalyptic number.

2420400244387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420400244387 is an equidigital number, since it uses as much as digits as its factorization.

2420400244387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064, while the sum is 40.

The spelling of 2420400244387 in words is "two trillion, four hundred twenty billion, four hundred million, two hundred forty-four thousand, three hundred eighty-seven".