2543105398 has 32 divisors (see below), whose sum is σ = 4042368000. Its totient is φ = 1198018080.

The previous prime is 2543105393. The next prime is 2543105419. The reversal of 2543105398 is 8935013452.

It is a self number, because there is not a number n which added to its sum of digits gives 2543105398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543105393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923728 + ... + 926476.

It is an arithmetic number, because the mean of its divisors is an integer number (126324000).

Almost surely, 2^2543105398 is an apocalyptic number.

2543105398 is a deficient number, since it is larger than the sum of its proper divisors (1499262602).

2543105398 is a wasteful number, since it uses less digits than its factorization.

2543105398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2543105398 is about 50429.2117527133. The cubic root of 2543105398 is about 1364.9648043808.

The spelling of 2543105398 in words is "two billion, five hundred forty-three million, one hundred five thousand, three hundred ninety-eight".