1808482656 has 48 divisors (see below), whose sum is σ = 4790847600. Its totient is φ = 597293568.

The previous prime is 1808482609. The next prime is 1808482657. The reversal of 1808482656 is 6562848081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808482657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75951 + ... + 96878.

It is an arithmetic number, because the mean of its divisors is an integer number (99809325).

Almost surely, 2^1808482656 is an apocalyptic number.

1808482656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1808482656 is an abundant number, since it is smaller than the sum of its proper divisors (2982364944).

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

1808482656 is a wasteful number, since it uses less digits than its factorization.

1808482656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172951 (or 172943 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 1808482656 is about 42526.2584293516. The cubic root of 1808482656 is about 1218.3482655192.

The spelling of 1808482656 in words is "one billion, eight hundred eight million, four hundred eighty-two thousand, six hundred fifty-six".