1881533952 has 240 divisors, whose sum is σ = 5817940128. Its totient is φ = 583925760.

The previous prime is 1881533947. The next prime is 1881534023. The reversal of 1881533952 is 2593351881.

It is a junction number, because it is equal to n+sod(n) for n = 1881533898 and 1881533907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4345128 + ... + 4345560.

Almost surely, 2^1881533952 is an apocalyptic number.

1881533952 is a gapful number since it is divisible by the number (12) 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 1881533952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2908970064).

1881533952 is an abundant number, since it is smaller than the sum of its proper divisors (3936406176).

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

1881533952 is a wasteful number, since it uses less digits than its factorization.

1881533952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 502 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 1881533952 is about 43376.6521529728. The cubic root of 1881533952 is about 1234.5367420057.

The spelling of 1881533952 in words is "one billion, eight hundred eighty-one million, five hundred thirty-three thousand, nine hundred fifty-two".