238398720 has 288 divisors, whose sum is σ = 892819200. Its totient is φ = 54190080.

The previous prime is 238398697. The next prime is 238398731. The reversal of 238398720 is 27893832.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317030 + ... + 1317210.

Almost surely, 2^238398720 is an apocalyptic number.

238398720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238398720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446409600).

238398720 is an abundant number, since it is smaller than the sum of its proper divisors (654420480).

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

238398720 is an equidigital number, since it uses as much as digits as its factorization.

238398720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 238398720 is about 15440.1658022186. The cubic root of 238398720 is about 620.0613189439.

The spelling of 238398720 in words is "two hundred thirty-eight million, three hundred ninety-eight thousand, seven hundred twenty".