405502002231 has 16 divisors (see below), whose sum is σ = 541332188640. Its totient is φ = 270003345920.

The previous prime is 405502002221. The next prime is 405502002307. The reversal of 405502002231 is 132200205504.

It is a cyclic number.

It is not a de Polignac number, because 405502002231 - 2⁹ = 405502001719 is a prime.

It is a super-2 number, since 2×405502002231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405502002211) 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, 24776491 + ... + 24792851.

It is an arithmetic number, because the mean of its divisors is an integer number (33833261790).

Almost surely, 2^405502002231 is an apocalyptic number.

405502002231 is a deficient number, since it is larger than the sum of its proper divisors (135830186409).

405502002231 is a wasteful number, since it uses less digits than its factorization.

405502002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25986.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 405502002231 its reverse (132200205504), we get a palindrome (537702207735).

The spelling of 405502002231 in words is "four hundred five billion, five hundred two million, two thousand, two hundred thirty-one".