402411423 has 16 divisors (see below), whose sum is σ = 540379136. Its totient is φ = 266366880.

The previous prime is 402411409. The next prime is 402411479. The reversal of 402411423 is 324114204.

It is not a de Polignac number, because 402411423 - 2⁴ = 402411407 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 402411423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402411523) 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, 302586 + ... + 303912.

It is an arithmetic number, because the mean of its divisors is an integer number (33773696).

Almost surely, 2^402411423 is an apocalyptic number.

402411423 is a deficient number, since it is larger than the sum of its proper divisors (137967713).

402411423 is a wasteful number, since it uses less digits than its factorization.

402411423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 402411423 is about 20060.1949890822. The cubic root of 402411423 is about 738.2839606876.

Adding to 402411423 its reverse (324114204), we get a palindrome (726525627).

The spelling of 402411423 in words is "four hundred two million, four hundred eleven thousand, four hundred twenty-three".