238505760 has 144 divisors (see below), whose sum is σ = 823488120. Its totient is φ = 62853120.

The previous prime is 238505747. The next prime is 238505779. The reversal of 238505760 is 67505832.

238505760 is a `hidden beast` number, since 2 + 3 + 85 + 0 + 576 + 0 = 666.

238505760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 68359824 + 170145936 = 8268^2 + 13044^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127230 + ... + 129090.

Almost surely, 2^238505760 is an apocalyptic number.

238505760 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 238505760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411744060).

238505760 is an abundant number, since it is smaller than the sum of its proper divisors (584982360).

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

238505760 is a wasteful number, since it uses less digits than its factorization.

238505760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 238505760 is about 15443.6316972401. The cubic root of 238505760 is about 620.1541066801.

The spelling of 238505760 in words is "two hundred thirty-eight million, five hundred five thousand, seven hundred sixty".