218382038402 has 32 divisors (see below), whose sum is σ = 359543219904. Its totient is φ = 98657070400.

The previous prime is 218382038389. The next prime is 218382038411. The reversal of 218382038402 is 204830283812.

It is a happy number.

It is a super-2 number, since 2×218382038402² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 218382038402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182368 + ... + 4234260.

It is an arithmetic number, because the mean of its divisors is an integer number (11235725622).

Almost surely, 2^218382038402 is an apocalyptic number.

218382038402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

218382038402 is a deficient number, since it is larger than the sum of its proper divisors (141161181502).

218382038402 is a wasteful number, since it uses less digits than its factorization.

218382038402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53074.

The product of its (nonzero) digits is 147456, while the sum is 41.

It can be divided in two parts, 2183820 and 38402, that added together give a palindrome (2222222).

The spelling of 218382038402 in words is "two hundred eighteen billion, three hundred eighty-two million, thirty-eight thousand, four hundred two".