20210331404 has 12 divisors (see below), whose sum is σ = 35732700024. Its totient is φ = 10000988544.

The previous prime is 20210331389. The next prime is 20210331443. The reversal of 20210331404 is 40413301202.

It is a super-2 number, since 2×20210331404² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26043854 + ... + 26044629.

It is an arithmetic number, because the mean of its divisors is an integer number (2977725002).

Almost surely, 2^20210331404 is an apocalyptic number.

It is an amenable number.

20210331404 is a deficient number, since it is larger than the sum of its proper divisors (15522368620).

20210331404 is a wasteful number, since it uses less digits than its factorization.

20210331404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52088584 (or 52088582 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20210331404 its reverse (40413301202), we get a palindrome (60623632606).

The spelling of 20210331404 in words is "twenty billion, two hundred ten million, three hundred thirty-one thousand, four hundred four".