382434621 has 4 divisors (see below), whose sum is σ = 509912832. Its totient is φ = 254956412.

The previous prime is 382434617. The next prime is 382434623. The reversal of 382434621 is 126434283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 382434621 - 2² = 382434617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382434623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63739101 + ... + 63739106.

It is an arithmetic number, because the mean of its divisors is an integer number (127478208).

Almost surely, 2^382434621 is an apocalyptic number.

It is an amenable number.

382434621 is a deficient number, since it is larger than the sum of its proper divisors (127478211).

382434621 is a wasteful number, since it uses less digits than its factorization.

382434621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127478210.

The product of its digits is 27648, while the sum is 33.

The square root of 382434621 is about 19555.9356973784. The cubic root of 382434621 is about 725.8592245013.

The spelling of 382434621 in words is "three hundred eighty-two million, four hundred thirty-four thousand, six hundred twenty-one".