43215115405400 has 48 divisors (see below), whose sum is σ = 100475863608600. Its totient is φ = 17285922241280.

The previous prime is 43215115405393. The next prime is 43215115405409. The reversal of 43215115405400 is 450451151234.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43215115405409) 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, 30303596 + ... + 31697604.

Almost surely, 2^{43215115405400} is an apocalyptic number.

43215115405400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43215115405400 is an abundant number, since it is smaller than the sum of its proper divisors (57260748203200).

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

43215115405400 is a wasteful number, since it uses less digits than its factorization.

43215115405400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549028 (or 1549019 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 43215115405400 its reverse (450451151234), we get a palindrome (43665566556634).

The spelling of 43215115405400 in words is "forty-three trillion, two hundred fifteen billion, one hundred fifteen million, four hundred five thousand, four hundred".