7830349644 has 48 divisors (see below), whose sum is σ = 20310993920. Its totient is φ = 2331616320.

The previous prime is 7830349643. The next prime is 7830349661. The reversal of 7830349644 is 4469430387.

It is a super-2 number, since 2×7830349644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7830349593 and 7830349602.

It is not an unprimeable number, because it can be changed into a prime (7830349643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804754 + ... + 814425.

Almost surely, 2^7830349644 is an apocalyptic number.

It is an amenable number.

7830349644 is an abundant number, since it is smaller than the sum of its proper divisors (12480644276).

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

7830349644 is a wasteful number, since it uses less digits than its factorization.

7830349644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619230 (or 1619228 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The square root of 7830349644 is about 88489.2628740911. The cubic root of 7830349644 is about 1985.7613411924.

The spelling of 7830349644 in words is "seven billion, eight hundred thirty million, three hundred forty-nine thousand, six hundred forty-four".