1855500480 has 448 divisors, whose sum is σ = 7022592000. Its totient is φ = 459841536.

The previous prime is 1855500433. The next prime is 1855500481. The reversal of 1855500480 is 840055581.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1855500481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14610177 + ... + 14610303.

Almost surely, 2^1855500480 is an apocalyptic number.

1855500480 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 1855500480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3511296000).

1855500480 is an abundant number, since it is smaller than the sum of its proper divisors (5167091520).

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

1855500480 is a wasteful number, since it uses less digits than its factorization.

1855500480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 1855500480 is about 43075.5206584900. The cubic root of 1855500480 is about 1228.8164701162.

The spelling of 1855500480 in words is "one billion, eight hundred fifty-five million, five hundred thousand, four hundred eighty".