1883216421 has 12 divisors (see below), whose sum is σ = 2725040448. Its totient is φ = 1253244264.

The previous prime is 1883216399. The next prime is 1883216431. The reversal of 1883216421 is 1246123881.

1883216421 is a `hidden beast` number, since 1 + 8 + 8 + 3 + 2 + 1 + 642 + 1 = 666.

1883216421 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1883216421 - 2⁵ = 1883216389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1883216431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180765 + ... + 190898.

It is an arithmetic number, because the mean of its divisors is an integer number (227086704).

Almost surely, 2^1883216421 is an apocalyptic number.

It is an amenable number.

1883216421 is a deficient number, since it is larger than the sum of its proper divisors (841824027).

1883216421 is a wasteful number, since it uses less digits than its factorization.

1883216421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372232 (or 372229 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1883216421 is about 43396.0415360664. The cubic root of 1883216421 is about 1234.9046069238.

It can be divided in two parts, 18832 and 16421, that added together give a palindrome (35253).

The spelling of 1883216421 in words is "one billion, eight hundred eighty-three million, two hundred sixteen thousand, four hundred twenty-one".