238431030436 has 9 divisors (see below), whose sum is σ = 417256012299. Its totient is φ = 119215026924.

The previous prime is 238431030433. The next prime is 238431030469. The reversal of 238431030436 is 634030134832.

The square root of 238431030436 is 488294.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238431030395 and 238431030404.

It is not an unprimeable number, because it can be changed into a prime (238431030433) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 854515 + ... + 1098661.

Almost surely, 2^238431030436 is an apocalyptic number.

238431030436 is the 488294-th square number.

It is an amenable number.

238431030436 is a deficient number, since it is larger than the sum of its proper divisors (178824981863).

238431030436 is an frugal number, since it uses more digits than its factorization.

238431030436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488298 (or 244149 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 238431030436 in words is "two hundred thirty-eight billion, four hundred thirty-one million, thirty thousand, four hundred thirty-six".