408280010399 has 4 divisors (see below), whose sum is σ = 408952630464. Its totient is φ = 407607390336.

The previous prime is 408280010393. The next prime is 408280010401. The reversal of 408280010399 is 993010082804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408280010399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408280010393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336309122 + ... + 336310335.

It is an arithmetic number, because the mean of its divisors is an integer number (102238157616).

Almost surely, 2^408280010399 is an apocalyptic number.

408280010399 is a deficient number, since it is larger than the sum of its proper divisors (672620065).

408280010399 is an equidigital number, since it uses as much as digits as its factorization.

408280010399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672620064.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 408280010399 in words is "four hundred eight billion, two hundred eighty million, ten thousand, three hundred ninety-nine".