1881535480 has 96 divisors (see below), whose sum is σ = 4691473920. Its totient is φ = 678585600.

The previous prime is 1881535459. The next prime is 1881535489. The reversal of 1881535480 is 845351881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881535489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613150 + ... + 616210.

It is an arithmetic number, because the mean of its divisors is an integer number (48869520).

Almost surely, 2^1881535480 is an apocalyptic number.

1881535480 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 1881535480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345736960).

1881535480 is an abundant number, since it is smaller than the sum of its proper divisors (2809938440).

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

1881535480 is a wasteful number, since it uses less digits than its factorization.

1881535480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221 (or 3206 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 43.

The square root of 1881535480 is about 43376.6697661312. The cubic root of 1881535480 is about 1234.5370761961.

The spelling of 1881535480 in words is "one billion, eight hundred eighty-one million, five hundred thirty-five thousand, four hundred eighty".