384385424 has 10 divisors (see below), whose sum is σ = 744746790. Its totient is φ = 192192704.

The previous prime is 384385423. The next prime is 384385427. The reversal of 384385424 is 424583483.

It can be written as a sum of positive squares in only one way, i.e., 379003024 + 5382400 = 19468^2 + 2320^2 .

It is not an unprimeable number, because it can be changed into a prime (384385423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12012029 + ... + 12012060.

It is an arithmetic number, because the mean of its divisors is an integer number (74474679).

Almost surely, 2^384385424 is an apocalyptic number.

It is an amenable number.

384385424 is a deficient number, since it is larger than the sum of its proper divisors (360361366).

384385424 is a wasteful number, since it uses less digits than its factorization.

384385424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24024097 (or 24024091 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

The square root of 384385424 is about 19605.7497688816. The cubic root of 384385424 is about 727.0913370281.

The spelling of 384385424 in words is "three hundred eighty-four million, three hundred eighty-five thousand, four hundred twenty-four".