7838620330 has 16 divisors (see below), whose sum is σ = 14246504064. Its totient is φ = 3105006480.

The previous prime is 7838620319. The next prime is 7838620331. The reversal of 7838620330 is 330268387.

It is a super-2 number, since 2×7838620330² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7838620331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3804126 + ... + 3806185.

It is an arithmetic number, because the mean of its divisors is an integer number (890406504).

Almost surely, 2^7838620330 is an apocalyptic number.

7838620330 is a deficient number, since it is larger than the sum of its proper divisors (6407883734).

7838620330 is a wasteful number, since it uses less digits than its factorization.

7838620330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610421.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 7838620330 is about 88535.9832497499. The cubic root of 7838620330 is about 1986.4602384434.

The spelling of 7838620330 in words is "seven billion, eight hundred thirty-eight million, six hundred twenty thousand, three hundred thirty".