384242538 has 16 divisors (see below), whose sum is σ = 781083936. Its totient is φ = 125981040.

The previous prime is 384242501. The next prime is 384242561. The reversal of 384242538 is 835242483.

It is a junction number, because it is equal to n+sod(n) for n = 384242496 and 384242505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524556 + ... + 525287.

It is an arithmetic number, because the mean of its divisors is an integer number (48817746).

Almost surely, 2^384242538 is an apocalyptic number.

384242538 is an abundant number, since it is smaller than the sum of its proper divisors (396841398).

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

384242538 is a wasteful number, since it uses less digits than its factorization.

384242538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049909.

The product of its digits is 184320, while the sum is 39.

The square root of 384242538 is about 19602.1054481400. The cubic root of 384242538 is about 727.0012329798.

The spelling of 384242538 in words is "three hundred eighty-four million, two hundred forty-two thousand, five hundred thirty-eight".