408203505427 has 4 divisors (see below), whose sum is σ = 408217821336. Its totient is φ = 408189189520.

The previous prime is 408203505389. The next prime is 408203505467. The reversal of 408203505427 is 724505302804.

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

It is a cyclic number.

It is not a de Polignac number, because 408203505427 - 2¹⁵ = 408203472659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408203505427.

It is not an unprimeable number, because it can be changed into a prime (408203505467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7115098 + ... + 7172239.

It is an arithmetic number, because the mean of its divisors is an integer number (102054455334).

Almost surely, 2^408203505427 is an apocalyptic number.

408203505427 is a deficient number, since it is larger than the sum of its proper divisors (14315909).

408203505427 is a wasteful number, since it uses less digits than its factorization.

408203505427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14315908.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 408203505427 in words is "four hundred eight billion, two hundred three million, five hundred five thousand, four hundred twenty-seven".