384461644 has 36 divisors (see below), whose sum is σ = 792117144. Its totient is φ = 162777216.

The previous prime is 384461617. The next prime is 384461669. The reversal of 384461644 is 446164483.

It is a junction number, because it is equal to n+sod(n) for n = 384461597 and 384461606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4452 + ... + 28084.

It is an arithmetic number, because the mean of its divisors is an integer number (22003254).

Almost surely, 2^384461644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384461644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396058572).

384461644 is an abundant number, since it is smaller than the sum of its proper divisors (407655500).

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

384461644 is a wasteful number, since it uses less digits than its factorization.

384461644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23734 (or 23725 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 384461644 is about 19607.6934900564. The cubic root of 384461644 is about 727.1393923008.

The spelling of 384461644 in words is "three hundred eighty-four million, four hundred sixty-one thousand, six hundred forty-four".