1881045504 has 240 divisors, whose sum is σ = 6068174112. Its totient is φ = 578285568.

The previous prime is 1881045503. The next prime is 1881045511. The reversal of 1881045504 is 4055401881.

It is a super-2 number, since 2×1881045504² = 7076664376237228032, which contains 22 as substring.

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 (1881045503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1616827 + ... + 1617989.

Almost surely, 2^1881045504 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 1881045504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3034087056).

1881045504 is an abundant number, since it is smaller than the sum of its proper divisors (4187128608).

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

1881045504 is an equidigital number, since it uses as much as digits as its factorization.

1881045504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 1881045504 is about 43371.0214774796. The cubic root of 1881045504 is about 1234.4299037900.

The spelling of 1881045504 in words is "one billion, eight hundred eighty-one million, forty-five thousand, five hundred four".