1813847448 has 128 divisors (see below), whose sum is σ = 5494763520. Its totient is φ = 487918080.

The previous prime is 1813847447. The next prime is 1813847467. The reversal of 1813847448 is 8447483181.

It is a super-3 number, since 3×1813847448³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1813847397 and 1813847406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813847447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187990 + ... + 197402.

It is an arithmetic number, because the mean of its divisors is an integer number (42927840).

Almost surely, 2^1813847448 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 1813847448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747381760).

1813847448 is an abundant number, since it is smaller than the sum of its proper divisors (3680916072).

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

1813847448 is a wasteful number, since it uses less digits than its factorization.

1813847448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497 (or 9493 counting only the distinct ones).

The product of its digits is 688128, while the sum is 48.

The square root of 1813847448 is about 42589.2879489667. The cubic root of 1813847448 is about 1219.5518034733.

The spelling of 1813847448 in words is "one billion, eight hundred thirteen million, eight hundred forty-seven thousand, four hundred forty-eight".