1809248056 has 64 divisors (see below), whose sum is σ = 4375296000. Its totient is φ = 680588160.

The previous prime is 1809248017. The next prime is 1809248081. The reversal of 1809248056 is 6508429081.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32776 + ... + 68503.

It is an arithmetic number, because the mean of its divisors is an integer number (68364000).

Almost surely, 2^1809248056 is an apocalyptic number.

It is an amenable number.

1809248056 is an abundant number, since it is smaller than the sum of its proper divisors (2566047944).

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

1809248056 is a wasteful number, since it uses less digits than its factorization.

1809248056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101332 (or 101328 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1809248056 is about 42535.2566231826. The cubic root of 1809248056 is about 1218.5201208650.

The spelling of 1809248056 in words is "one billion, eight hundred nine million, two hundred forty-eight thousand, fifty-six".