2021050404 has 36 divisors (see below), whose sum is σ = 5113565184. Its totient is φ = 673050672.

The previous prime is 2021050393. The next prime is 2021050477. The reversal of 2021050404 is 4040501202.

2021050404 is a `hidden beast` number, since 2 + 0 + 210 + 50 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13309 + ... + 64955.

Almost surely, 2^2021050404 is an apocalyptic number.

It is an amenable number.

2021050404 is an abundant number, since it is smaller than the sum of its proper divisors (3092514780).

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

2021050404 is a wasteful number, since it uses less digits than its factorization.

2021050404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52744 (or 52739 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2021050404 is about 44956.0941808783. The cubic root of 2021050404 is about 1264.3259395855.

Adding to 2021050404 its reverse (4040501202), we get a palindrome (6061551606).

The spelling of 2021050404 in words is "two billion, twenty-one million, fifty thousand, four hundred four".