42543354400 has 72 divisors (see below), whose sum is σ = 105818672484. Its totient is φ = 16696243200.

The previous prime is 42543354397. The next prime is 42543354407. The reversal of 42543354400 is 445334524.

It can be written as a sum of positive squares in 6 ways, for example, as 25391785104 + 17151569296 = 159348^2 + 130964^2 .

It is not an unprimeable number, because it can be changed into a prime (42543354407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459291 + ... + 544090.

Almost surely, 2^42543354400 is an apocalyptic number.

42543354400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42543354400 is an abundant number, since it is smaller than the sum of its proper divisors (63275318084).

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

42543354400 is a wasteful number, since it uses less digits than its factorization.

42543354400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003454 (or 1003441 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 42543354400 its reverse (445334524), we get a palindrome (42988688924).

The spelling of 42543354400 in words is "forty-two billion, five hundred forty-three million, three hundred fifty-four thousand, four hundred".