238222548 has 18 divisors (see below), whose sum is σ = 602173754. Its totient is φ = 79407504.

The previous prime is 238222519. The next prime is 238222549. The reversal of 238222548 is 845222832.

It can be written as a sum of positive squares in only one way, i.e., 191600964 + 46621584 = 13842^2 + 6828^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×238222548² = 113499964751224608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6617293 = 238222548 / (2 + 3 + 8 + 2 + 2 + 2 + 5 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238222549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3308611 + ... + 3308682.

Almost surely, 2^238222548 is an apocalyptic number.

It is an amenable number.

238222548 is an abundant number, since it is smaller than the sum of its proper divisors (363951206).

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

238222548 is a wasteful number, since it uses less digits than its factorization.

238222548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617303 (or 6617298 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 238222548 is about 15434.4597573093. The cubic root of 238222548 is about 619.9085435685.

The spelling of 238222548 in words is "two hundred thirty-eight million, two hundred twenty-two thousand, five hundred forty-eight".