9820440402 has 16 divisors (see below), whose sum is σ = 19917513792. Its totient is φ = 3227374640.

The previous prime is 9820440401. The next prime is 9820440457. The reversal of 9820440402 is 2040440289.

It is not an unprimeable number, because it can be changed into a prime (9820440401) 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, 11525913 + ... + 11526764.

It is an arithmetic number, because the mean of its divisors is an integer number (1244844612).

Almost surely, 2^9820440402 is an apocalyptic number.

9820440402 is an abundant number, since it is smaller than the sum of its proper divisors (10097073390).

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

9820440402 is a wasteful number, since it uses less digits than its factorization.

9820440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23052753.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 9820440402 is about 99098.1352094983. The cubic root of 9820440402 is about 2141.4617492934.

The spelling of 9820440402 in words is "nine billion, eight hundred twenty million, four hundred forty thousand, four hundred two".