2238641748 has 72 divisors (see below), whose sum is σ = 6617619008. Its totient is φ = 624734208.

The previous prime is 2238641737. The next prime is 2238641761. The reversal of 2238641748 is 8471468322.

It is a happy number.

2238641748 is a `hidden beast` number, since 223 + 8 + 6 + 417 + 4 + 8 = 666.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 92461 + ... + 114132.

Almost surely, 2^2238641748 is an apocalyptic number.

2238641748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2238641748 is an abundant number, since it is smaller than the sum of its proper divisors (4378977260).

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

2238641748 is a wasteful number, since it uses less digits than its factorization.

2238641748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206653 (or 206648 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2238641748 is about 47314.2869332298. The cubic root of 2238641748 is about 1308.1620103451.

The spelling of 2238641748 in words is "two billion, two hundred thirty-eight million, six hundred forty-one thousand, seven hundred forty-eight".