1881486474 has 64 divisors (see below), whose sum is σ = 4435603200. Its totient is φ = 520865280.

The previous prime is 1881486473. The next prime is 1881486487. The reversal of 1881486474 is 4746841881.

It is not an unprimeable number, because it can be changed into a prime (1881486473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252912 + ... + 260244.

It is an arithmetic number, because the mean of its divisors is an integer number (69306300).

Almost surely, 2^1881486474 is an apocalyptic number.

1881486474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1881486474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2217801600).

1881486474 is an abundant number, since it is smaller than the sum of its proper divisors (2554116726).

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

1881486474 is a wasteful number, since it uses less digits than its factorization.

1881486474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535.

The product of its digits is 1376256, while the sum is 51.

The square root of 1881486474 is about 43376.1048735361. The cubic root of 1881486474 is about 1234.5263579556.

The spelling of 1881486474 in words is "one billion, eight hundred eighty-one million, four hundred eighty-six thousand, four hundred seventy-four".