2238993136 has 80 divisors (see below), whose sum is σ = 4761381760. Its totient is φ = 1016167680.

The previous prime is 2238993131. The next prime is 2238993137. The reversal of 2238993136 is 6313998322.

It is a super-2 number, since 2×2238993136² = 10026180526110228992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238993131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752131 + ... + 755101.

It is an arithmetic number, because the mean of its divisors is an integer number (59517272).

Almost surely, 2^2238993136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2238993136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380690880).

2238993136 is an abundant number, since it is smaller than the sum of its proper divisors (2522388624).

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

2238993136 is a wasteful number, since it uses less digits than its factorization.

2238993136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102 (or 3096 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The square root of 2238993136 is about 47318.0001268016. Note that the first 3 decimals coincide. The cubic root of 2238993136 is about 1308.2304519026.

The spelling of 2238993136 in words is "two billion, two hundred thirty-eight million, nine hundred ninety-three thousand, one hundred thirty-six".