1543797472 has 96 divisors (see below), whose sum is σ = 3777617088. Its totient is φ = 605822976.

The previous prime is 1543797449. The next prime is 1543797473. The reversal of 1543797472 is 2747973451.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543797473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135418 + ... + 146374.

It is an arithmetic number, because the mean of its divisors is an integer number (39350178).

Almost surely, 2^1543797472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1543797472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888808544).

1543797472 is an abundant number, since it is smaller than the sum of its proper divisors (2233819616).

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

1543797472 is a wasteful number, since it uses less digits than its factorization.

1543797472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028 (or 11020 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 49.

The square root of 1543797472 is about 39291.1882233154. The cubic root of 1543797472 is about 1155.7487750427.

The spelling of 1543797472 in words is "one billion, five hundred forty-three million, seven hundred ninety-seven thousand, four hundred seventy-two".