264218022238 has 8 divisors (see below), whose sum is σ = 396330275232. Its totient is φ = 132107930496.

The previous prime is 264218022221. The next prime is 264218022241. The reversal of 264218022238 is 832220812462.

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

It is a super-2 number, since 2×264218022238² (a number of 24 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 264218022238.

It is a congruent number.

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, 188995 + ... + 751102.

It is an arithmetic number, because the mean of its divisors is an integer number (49541284404).

Almost surely, 2^264218022238 is an apocalyptic number.

264218022238 is a deficient number, since it is larger than the sum of its proper divisors (132112252994).

264218022238 is a wasteful number, since it uses less digits than its factorization.

264218022238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080626.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 264218022238 in words is "two hundred sixty-four billion, two hundred eighteen million, twenty-two thousand, two hundred thirty-eight".