402404213223023 has 16 divisors (see below), whose sum is σ = 439582271096832. Its totient is φ = 365325489900000.

The previous prime is 402404213222953. The next prime is 402404213223037. The reversal of 402404213223023 is 320322312404204.

It is a cyclic number.

It is not a de Polignac number, because 402404213223023 - 2¹⁶ = 402404213157487 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 (402404213523023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330749765 + ... + 331964177.

It is an arithmetic number, because the mean of its divisors is an integer number (27473891943552).

Almost surely, 2^{402404213223023} is an apocalyptic number.

402404213223023 is a deficient number, since it is larger than the sum of its proper divisors (37178057873809).

402404213223023 is a wasteful number, since it uses less digits than its factorization.

402404213223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255286.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 402404213223023 its reverse (320322312404204), we get a palindrome (722726525627227).

The spelling of 402404213223023 in words is "four hundred two trillion, four hundred four billion, two hundred thirteen million, two hundred twenty-three thousand, twenty-three".