238504432646 has 8 divisors (see below), whose sum is σ = 358467896304. Its totient is φ = 119015133880.

The previous prime is 238504432633. The next prime is 238504432679. The reversal of 238504432646 is 646234405832.

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

It is a super-2 number, since 2×238504432646² (a number of 24 digits) contains 22 as substring.

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 238504432646.

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, 118539965 + ... + 118541976.

It is an arithmetic number, because the mean of its divisors is an integer number (44808487038).

Almost surely, 2^238504432646 is an apocalyptic number.

238504432646 is a deficient number, since it is larger than the sum of its proper divisors (119963463658).

238504432646 is a wasteful number, since it uses less digits than its factorization.

238504432646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237082446.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 238504432646 in words is "two hundred thirty-eight billion, five hundred four million, four hundred thirty-two thousand, six hundred forty-six".