238951620 has 120 divisors (see below), whose sum is σ = 753924864. Its totient is φ = 63615456.

The previous prime is 238951607. The next prime is 238951621. The reversal of 238951620 is 26159832.

238951620 is a `hidden beast` number, since 23 + 8 + 9 + 5 + 1 + 620 = 666.

238951620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (238951621) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 393357 + ... + 393963.

Almost surely, 2^238951620 is an apocalyptic number.

238951620 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 238951620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376962432).

238951620 is an abundant number, since it is smaller than the sum of its proper divisors (514973244).

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

238951620 is an frugal number, since it uses more digits than its factorization.

238951620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 238951620 is about 15458.0600335230. The cubic root of 238951620 is about 620.5403025134.

The spelling of 238951620 in words is "two hundred thirty-eight million, nine hundred fifty-one thousand, six hundred twenty".