2238534945 has 24 divisors (see below), whose sum is σ = 3896380800. Its totient is φ = 1188884256.

The previous prime is 2238534937. The next prime is 2238534971. The reversal of 2238534945 is 5494358322.

2238534945 is a `hidden beast` number, since 2 + 23 + 8 + 534 + 94 + 5 = 666.

It is not a de Polignac number, because 2238534945 - 2³ = 2238534937 is a prime.

It is a super-2 number, since 2×2238534945² = 10022077399972306050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2238534945.

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, 93315 + ... + 114824.

It is an arithmetic number, because the mean of its divisors is an integer number (162349200).

Almost surely, 2^2238534945 is an apocalyptic number.

It is an amenable number.

2238534945 is a deficient number, since it is larger than the sum of its proper divisors (1657845855).

2238534945 is a wasteful number, since it uses less digits than its factorization.

2238534945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208389 (or 208386 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2238534945 is about 47313.1582649055. The cubic root of 2238534945 is about 1308.1412063838.

The spelling of 2238534945 in words is "two billion, two hundred thirty-eight million, five hundred thirty-four thousand, nine hundred forty-five".