238002020 has 24 divisors (see below), whose sum is σ = 505423800. Its totient is φ = 94130432.

The previous prime is 238001987. The next prime is 238002041. The reversal of 238002020 is 20200832.

It can be written as a sum of positive squares in 4 ways, for example, as 52388644 + 185613376 = 7238^2 + 13624^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 238002020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65075 + ... + 68634.

It is an arithmetic number, because the mean of its divisors is an integer number (21059325).

Almost surely, 2^238002020 is an apocalyptic number.

238002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238002020 is an abundant number, since it is smaller than the sum of its proper divisors (267421780).

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

238002020 is a wasteful number, since it uses less digits than its factorization.

238002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133807 (or 133805 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 238002020 is about 15427.3140889787. The cubic root of 238002020 is about 619.7171967257.

Adding to 238002020 its reverse (20200832), we get a palindrome (258202852).

The spelling of 238002020 in words is "two hundred thirty-eight million, two thousand, twenty".