402340413 has 16 divisors (see below), whose sum is σ = 554502656. Its totient is φ = 259225920.

The previous prime is 402340397. The next prime is 402340441. The reversal of 402340413 is 314043204.

It is not a de Polignac number, because 402340413 - 2⁴ = 402340397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 402340413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402340453) 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, 79095 + ... + 84027.

It is an arithmetic number, because the mean of its divisors is an integer number (34656416).

Almost surely, 2^402340413 is an apocalyptic number.

It is an amenable number.

402340413 is a deficient number, since it is larger than the sum of its proper divisors (152162243).

402340413 is a wasteful number, since it uses less digits than its factorization.

402340413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402340413 is about 20058.4249880194. The cubic root of 402340413 is about 738.2405319767.

Adding to 402340413 its reverse (314043204), we get a palindrome (716383617).

It can be divided in two parts, 402340 and 413, that added together give a triangular number (402753 = T₈₉₇).

The spelling of 402340413 in words is "four hundred two million, three hundred forty thousand, four hundred thirteen".