1543420080 has 120 divisors (see below), whose sum is σ = 5221487232. Its totient is φ = 408548352.

The previous prime is 1543420079. The next prime is 1543420127. The reversal of 1543420080 is 800243451.

1543420080 is a `hidden beast` number, since 1 + 543 + 42 + 0 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90817 + ... + 106463.

Almost surely, 2^1543420080 is an apocalyptic number.

1543420080 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 1543420080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2610743616).

1543420080 is an abundant number, since it is smaller than the sum of its proper divisors (3678067152).

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

1543420080 is a wasteful number, since it uses less digits than its factorization.

1543420080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803 (or 15794 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1543420080 is about 39286.3854280335. The cubic root of 1543420080 is about 1155.6545904328.

The spelling of 1543420080 in words is "one billion, five hundred forty-three million, four hundred twenty thousand, eighty".