1947472560 has 240 divisors, whose sum is σ = 7445737728. Its totient is φ = 451545600.

The previous prime is 1947472517. The next prime is 1947472567. The reversal of 1947472560 is 652747491.

1947472560 is a `hidden beast` number, since 1 + 9 + 47 + 47 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1947472567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176815 + ... + 187505.

Almost surely, 2^1947472560 is an apocalyptic number.

1947472560 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 1947472560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3722868864).

1947472560 is an abundant number, since it is smaller than the sum of its proper divisors (5498265168).

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

1947472560 is a wasteful number, since it uses less digits than its factorization.

1947472560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10744 (or 10735 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 1947472560 is about 44130.1774299628. The cubic root of 1947472560 is about 1248.7929809926.

The spelling of 1947472560 in words is "one billion, nine hundred forty-seven million, four hundred seventy-two thousand, five hundred sixty".