238569780 has 48 divisors (see below), whose sum is σ = 678956544. Its totient is φ = 62574720.

The previous prime is 238569761. The next prime is 238569803. The reversal of 238569780 is 87965832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28932 + ... + 36251.

It is an arithmetic number, because the mean of its divisors is an integer number (14144928).

Almost surely, 2^238569780 is an apocalyptic number.

238569780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238569780 is an abundant number, since it is smaller than the sum of its proper divisors (440386764).

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

238569780 is a wasteful number, since it uses less digits than its factorization.

238569780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65256 (or 65254 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 238569780 is about 15445.7042571713. The cubic root of 238569780 is about 620.2095892173.

The spelling of 238569780 in words is "two hundred thirty-eight million, five hundred sixty-nine thousand, seven hundred eighty".