9918130 has 16 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 3942832.

The previous prime is 9918127. The next prime is 9918131. The reversal of 9918130 is 318199.

It is a junction number, because it is equal to n+sod(n) for n = 9918092 and 9918101.

It is not an unprimeable number, because it can be changed into a prime (9918131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300 + ... + 4639.

It is an arithmetic number, because the mean of its divisors is an integer number (1122660).

Almost surely, 2^9918130 is an apocalyptic number.

9918130 is a deficient number, since it is larger than the sum of its proper divisors (8044430).

9918130 is a wasteful number, since it uses less digits than its factorization.

9918130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 9918130 is about 3149.3062728163. The cubic root of 9918130 is about 214.8539119359.

The spelling of 9918130 in words is "nine million, nine hundred eighteen thousand, one hundred thirty".