1881420482 has 6 divisors (see below), whose sum is σ = 2822222739. Its totient is φ = 940679570.

The previous prime is 1881420469. The next prime is 1881420503. The reversal of 1881420482 is 2840241881.

It can be written as a sum of positive squares in only one way, i.e., 940710241 + 940710241 = 30671^2 + 30671^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30671.

It is a super-2 number, since 2×1881420482² = 7079486060178224648, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 46007 + ... + 76677.

Almost surely, 2^1881420482 is an apocalyptic number.

1881420482 is a deficient number, since it is larger than the sum of its proper divisors (940802257).

1881420482 is an frugal number, since it uses more digits than its factorization.

1881420482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61344 (or 30673 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 38.

The square root of 1881420482 is about 43375.3441715452. The cubic root of 1881420482 is about 1234.5119243651.

Multiplying 1881420482 by its product of nonzero digits (32768), we get a square (61650386354176 = 7851776²).

The spelling of 1881420482 in words is "one billion, eight hundred eighty-one million, four hundred twenty thousand, four hundred eighty-two".