1500420543400 has 96 divisors (see below), whose sum is σ = 3640644662400. Its totient is φ = 573996051200.

The previous prime is 1500420543389. The next prime is 1500420543409. The reversal of 1500420543400 is 43450240051.

It is not an unprimeable number, because it can be changed into a prime (1500420543409) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 42951141 + ... + 42986059.

It is an arithmetic number, because the mean of its divisors is an integer number (37923381900).

Almost surely, 2^{1500420543400} is an apocalyptic number.

1500420543400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1500420543400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820322331200).

1500420543400 is an abundant number, since it is smaller than the sum of its proper divisors (2140224119000).

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

1500420543400 is a wasteful number, since it uses less digits than its factorization.

1500420543400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44299 (or 44290 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 1500420543400 its reverse (43450240051), we get a palindrome (1543870783451).

The spelling of 1500420543400 in words is "one trillion, five hundred billion, four hundred twenty million, five hundred forty-three thousand, four hundred".