7438885320 has 128 divisors (see below), whose sum is σ = 23518771200. Its totient is φ = 1877094144.

The previous prime is 7438885297. The next prime is 7438885327. The reversal of 7438885320 is 235888347.

It is a super-2 number, since 2×7438885320² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7438885320.

It is not an unprimeable number, because it can be changed into a prime (7438885327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2923969 + ... + 2926511.

It is an arithmetic number, because the mean of its divisors is an integer number (183740400).

Almost surely, 2^7438885320 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 7438885320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11759385600).

7438885320 is an abundant number, since it is smaller than the sum of its proper divisors (16079885880).

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

7438885320 is a wasteful number, since it uses less digits than its factorization.

7438885320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859 (or 3855 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 7438885320 is about 86248.9728634492. The cubic root of 7438885320 is about 1952.1025159196.

The spelling of 7438885320 in words is "seven billion, four hundred thirty-eight million, eight hundred eighty-five thousand, three hundred twenty".