240402 has 16 divisors (see below), whose sum is σ = 486720. Its totient is φ = 79152.

The previous prime is 240379. The next prime is 240421. The reversal of 240402 is 204042.

240402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

240402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (30420).

2²⁴⁰⁴⁰² is an apocalyptic number.

240402 is an abundant number, since it is smaller than the sum of its proper divisors (246318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240402 is a wasteful number, since it uses less digits than its factorization.

240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 240402 is about 490.3080664235. The cubic root of 240402 is about 62.1793281940.

Adding to 240402 its reverse (204042), we get a palindrome (444444).

It can be divided in two parts, 24040 and 2, that added together give a palindrome (24042).

The spelling of 240402 in words is "two hundred forty thousand, four hundred two", and thus it is an iban number.