7238438856 has 128 divisors (see below), whose sum is σ = 22027420800. Its totient is φ = 2184192000.

The previous prime is 7238438833. The next prime is 7238438869. The reversal of 7238438856 is 6588348327.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566296 + ... + 578936.

It is an arithmetic number, because the mean of its divisors is an integer number (172089225).

Almost surely, 2^7238438856 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 7238438856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11013710400).

7238438856 is an abundant number, since it is smaller than the sum of its proper divisors (14788981944).

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

7238438856 is a wasteful number, since it uses less digits than its factorization.

7238438856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908 (or 12898 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 7238438856 is about 85079.0153680683. The cubic root of 7238438856 is about 1934.4089968426.

The spelling of 7238438856 in words is "seven billion, two hundred thirty-eight million, four hundred thirty-eight thousand, eight hundred fifty-six".