2100001404 has 48 divisors (see below), whose sum is σ = 5007290400. Its totient is φ = 684752640.

The previous prime is 2100001357. The next prime is 2100001417. The reversal of 2100001404 is 4041000012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2100001404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217234 + ... + 226694.

It is an arithmetic number, because the mean of its divisors is an integer number (104318550).

Almost surely, 2^2100001404 is an apocalyptic number.

It is an amenable number.

2100001404 is an abundant number, since it is smaller than the sum of its proper divisors (2907288996).

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

2100001404 is a wasteful number, since it uses less digits than its factorization.

2100001404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9870 (or 9868 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2100001404 is about 45825.7722684517. The cubic root of 2100001404 is about 1280.5794503736.

Adding to 2100001404 its reverse (4041000012), we get a palindrome (6141001416).

The spelling of 2100001404 in words is "two billion, one hundred million, one thousand, four hundred four".