840048413 has 2 divisors, whose sum is σ = 840048414. Its totient is φ = 840048412.

The previous prime is 840048409. The next prime is 840048487. The reversal of 840048413 is 314840048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608460889 + 231587524 = 24667^2 + 15218^2 .

It is a cyclic number.

It is not a de Polignac number, because 840048413 - 2² = 840048409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 840048413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840048403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420024206 + 420024207.

It is an arithmetic number, because the mean of its divisors is an integer number (420024207).

Almost surely, 2^840048413 is an apocalyptic number.

It is an amenable number.

840048413 is a deficient number, since it is larger than the sum of its proper divisors (1).

840048413 is an equidigital number, since it uses as much as digits as its factorization.

840048413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 840048413 is about 28983.5886839432. The cubic root of 840048413 is about 943.5569225181.

The spelling of 840048413 in words is "eight hundred forty million, forty-eight thousand, four hundred thirteen".