238218402 has 8 divisors (see below), whose sum is σ = 476436816. Its totient is φ = 79406132.

The previous prime is 238218373. The next prime is 238218437. The reversal of 238218402 is 204812832.

238218402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

238218402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 238218402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19851528 + ... + 19851539.

It is an arithmetic number, because the mean of its divisors is an integer number (59554602).

Almost surely, 2^238218402 is an apocalyptic number.

238218402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

238218402 is a wasteful number, since it uses less digits than its factorization.

238218402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39703072.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 238218402 is about 15434.3254468733. The cubic root of 238218402 is about 619.9049472734.

It can be divided in two parts, 23821 and 8402, that added together give a palindrome (32223).

The spelling of 238218402 in words is "two hundred thirty-eight million, two hundred eighteen thousand, four hundred two".