7620195438 has 12 divisors (see below), whose sum is σ = 16510423488. Its totient is φ = 2540065140.

The previous prime is 7620195437. The next prime is 7620195439. The reversal of 7620195438 is 8345910267.

7620195438 is a `hidden beast` number, since 7 + 6 + 20 + 195 + 438 = 666.

7620195438 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7620195437) and next prime (7620195439).

7620195438 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 7620195393 and 7620195402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620195431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211672078 + ... + 211672113.

It is an arithmetic number, because the mean of its divisors is an integer number (1375868624).

It is a 2-persistent number, because it is pandigital, and so is 2⋅7620195438 = 15240390876, but 3⋅7620195438 = 22860586314 is not.

Almost surely, 2^7620195438 is an apocalyptic number.

7620195438 is an abundant number, since it is smaller than the sum of its proper divisors (8890228050).

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

7620195438 is a wasteful number, since it uses less digits than its factorization.

7620195438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423344199 (or 423344196 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 7620195438 is about 87293.7308058259. The cubic root of 7620195438 is about 1967.8351026199.

The spelling of 7620195438 in words is "seven billion, six hundred twenty million, one hundred ninety-five thousand, four hundred thirty-eight".