238504435438 has 8 divisors (see below), whose sum is σ = 358676337240. Its totient is φ = 118945656360.

The previous prime is 238504435427. The next prime is 238504435447. The reversal of 238504435438 is 834534405832.

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

It is a super-2 number, since 2×238504435438² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238504435391 and 238504435400.

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, 153279708 + ... + 153281263.

It is an arithmetic number, because the mean of its divisors is an integer number (44834542155).

Almost surely, 2^238504435438 is an apocalyptic number.

238504435438 is a deficient number, since it is larger than the sum of its proper divisors (120171901802).

238504435438 is a wasteful number, since it uses less digits than its factorization.

238504435438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306561362.

The product of its (nonzero) digits is 5529600, while the sum is 49.

The spelling of 238504435438 in words is "two hundred thirty-eight billion, five hundred four million, four hundred thirty-five thousand, four hundred thirty-eight".