2021302404 has 48 divisors (see below), whose sum is σ = 5716818240. Its totient is φ = 612515520.

The previous prime is 2021302391. The next prime is 2021302421. The reversal of 2021302404 is 4042031202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 849529 + ... + 851904.

It is an arithmetic number, because the mean of its divisors is an integer number (119100380).

Almost surely, 2^2021302404 is an apocalyptic number.

It is an amenable number.

2021302404 is an abundant number, since it is smaller than the sum of its proper divisors (3695515836).

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

2021302404 is a wasteful number, since it uses less digits than its factorization.

2021302404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701457 (or 1701449 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2021302404 is about 44958.8968281029. The cubic root of 2021302404 is about 1264.3784860064.

Adding to 2021302404 its reverse (4042031202), we get a palindrome (6063333606).

The spelling of 2021302404 in words is "two billion, twenty-one million, three hundred two thousand, four hundred four".