402231551405 has 16 divisors (see below), whose sum is σ = 493164370944. Its totient is φ = 314800256640.

The previous prime is 402231551401. The next prime is 402231551417. The reversal of 402231551405 is 504155132204.

It is not a de Polignac number, because 402231551405 - 2² = 402231551401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402231551401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160844 + ... + 911226.

It is an arithmetic number, because the mean of its divisors is an integer number (30822773184).

Almost surely, 2^402231551405 is an apocalyptic number.

It is an amenable number.

402231551405 is a deficient number, since it is larger than the sum of its proper divisors (90932819539).

402231551405 is a wasteful number, since it uses less digits than its factorization.

402231551405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752716.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 402231551405 its reverse (504155132204), we get a palindrome (906386683609).

The spelling of 402231551405 in words is "four hundred two billion, two hundred thirty-one million, five hundred fifty-one thousand, four hundred five".