2238809148 has 18 divisors (see below), whose sum is σ = 5659212104. Its totient is φ = 746269704.

The previous prime is 2238809143. The next prime is 2238809161. The reversal of 2238809148 is 8419088322.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238809143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31094536 + ... + 31094607.

Almost surely, 2^2238809148 is an apocalyptic number.

It is an amenable number.

2238809148 is an abundant number, since it is smaller than the sum of its proper divisors (3420402956).

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

2238809148 is a wasteful number, since it uses less digits than its factorization.

2238809148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62189153 (or 62189148 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2238809148 is about 47316.0559218538. The cubic root of 2238809148 is about 1308.1946165541.

The spelling of 2238809148 in words is "two billion, two hundred thirty-eight million, eight hundred nine thousand, one hundred forty-eight".