7385128236 has 288 divisors, whose sum is σ = 21964400640. Its totient is φ = 2133457920.

The previous prime is 7385128211. The next prime is 7385128237. The reversal of 7385128236 is 6328215837.

It is a junction number, because it is equal to n+sod(n) for n = 7385128191 and 7385128200.

It is not an unprimeable number, because it can be changed into a prime (7385128237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 121067646 + ... + 121067706.

It is an arithmetic number, because the mean of its divisors is an integer number (76265280).

Almost surely, 2^7385128236 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 7385128236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10982200320).

7385128236 is an abundant number, since it is smaller than the sum of its proper divisors (14579272404).

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

7385128236 is a wasteful number, since it uses less digits than its factorization.

7385128236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 153 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 7385128236 is about 85936.7688245259. The cubic root of 7385128236 is about 1947.3888554072.

The spelling of 7385128236 in words is "seven billion, three hundred eighty-five million, one hundred twenty-eight thousand, two hundred thirty-six".