402084258427 has 4 divisors (see below), whose sum is σ = 402085746040. Its totient is φ = 402082770816.

The previous prime is 402084258397. The next prime is 402084258439. The reversal of 402084258427 is 724852480204.

It is a happy number.

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 402084258427 - 2¹⁵ = 402084225659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402084258497) 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, 211293 + ... + 921310.

It is an arithmetic number, because the mean of its divisors is an integer number (100521436510).

Almost surely, 2^402084258427 is an apocalyptic number.

402084258427 is a deficient number, since it is larger than the sum of its proper divisors (1487613).

402084258427 is a wasteful number, since it uses less digits than its factorization.

402084258427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487612.

The product of its (nonzero) digits is 1146880, while the sum is 46.

The spelling of 402084258427 in words is "four hundred two billion, eighty-four million, two hundred fifty-eight thousand, four hundred twenty-seven".