182421421 has 8 divisors (see below), whose sum is σ = 224518784. Its totient is φ = 144333360.

The previous prime is 182421383. The next prime is 182421443. The reversal of 182421421 is 124124281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-182421421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182421461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002225 + ... + 1002406.

It is an arithmetic number, because the mean of its divisors is an integer number (28064848).

Almost surely, 2^182421421 is an apocalyptic number.

It is an amenable number.

182421421 is a deficient number, since it is larger than the sum of its proper divisors (42097363).

182421421 is a wasteful number, since it uses less digits than its factorization.

182421421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004651.

The product of its digits is 1024, while the sum is 25.

The square root of 182421421 is about 13506.3474337069. The cubic root of 182421421 is about 567.1421755367.

The spelling of 182421421 in words is "one hundred eighty-two million, four hundred twenty-one thousand, four hundred twenty-one".