7334425638 has 64 divisors (see below), whose sum is σ = 17317152000. Its totient is φ = 2294453952.

The previous prime is 7334425627. The next prime is 7334425643. The reversal of 7334425638 is 8365244337.

7334425638 is a `hidden beast` number, since 7 + 3 + 3 + 4 + 4 + 2 + 5 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7334425593 and 7334425602.

It is a congruent number.

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, 76378 + ... + 143186.

It is an arithmetic number, because the mean of its divisors is an integer number (270580500).

Almost surely, 2^7334425638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7334425638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8658576000).

7334425638 is an abundant number, since it is smaller than the sum of its proper divisors (9982726362).

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

7334425638 is a wasteful number, since it uses less digits than its factorization.

7334425638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66946 (or 66940 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 7334425638 is about 85641.2613055179. The cubic root of 7334425638 is about 1942.9220179961.

The spelling of 7334425638 in words is "seven billion, three hundred thirty-four million, four hundred twenty-five thousand, six hundred thirty-eight".