2102451404 has 24 divisors (see below), whose sum is σ = 3897548928. Its totient is φ = 988924160.

The previous prime is 2102451397. The next prime is 2102451433. The reversal of 2102451404 is 4041542012.

It is a self number, because there is not a number n which added to its sum of digits gives 2102451404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170222 + ... + 182154.

It is an arithmetic number, because the mean of its divisors is an integer number (162397872).

Almost surely, 2^2102451404 is an apocalyptic number.

It is an amenable number.

2102451404 is a deficient number, since it is larger than the sum of its proper divisors (1795097524).

2102451404 is a wasteful number, since it uses less digits than its factorization.

2102451404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545 (or 14543 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2102451404 is about 45852.4961588789. The cubic root of 2102451404 is about 1281.0772596181.

Adding to 2102451404 its reverse (4041542012), we get a palindrome (6143993416).

The spelling of 2102451404 in words is "two billion, one hundred two million, four hundred fifty-one thousand, four hundred four".