2104400398 has 4 divisors (see below), whose sum is σ = 3156600600. Its totient is φ = 1052200198.

The previous prime is 2104400383. The next prime is 2104400429. The reversal of 2104400398 is 8930044012.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526100098 + ... + 526100101.

It is an arithmetic number, because the mean of its divisors is an integer number (789150150).

Almost surely, 2^2104400398 is an apocalyptic number.

2104400398 is a deficient number, since it is larger than the sum of its proper divisors (1052200202).

2104400398 is a wasteful number, since it uses less digits than its factorization.

2104400398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052200201.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2104400398 is about 45873.7441027000. The cubic root of 2104400398 is about 1281.4729946097.

The spelling of 2104400398 in words is "two billion, one hundred four million, four hundred thousand, three hundred ninety-eight".