384915434 has 16 divisors (see below), whose sum is σ = 597817800. Its totient is φ = 185654784.

The previous prime is 384915431. The next prime is 384915439. The reversal of 384915434 is 434519483.

It can be written as a sum of positive squares in 4 ways, for example, as 318444025 + 66471409 = 17845^2 + 8153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 384915391 and 384915400.

It is not an unprimeable number, because it can be changed into a prime (384915431) 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, 84134 + ... + 88590.

Almost surely, 2^384915434 is an apocalyptic number.

384915434 is a deficient number, since it is larger than the sum of its proper divisors (212902366).

384915434 is a wasteful number, since it uses less digits than its factorization.

384915434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977.

The product of its digits is 207360, while the sum is 41.

The square root of 384915434 is about 19619.2618107818. The cubic root of 384915434 is about 727.4253669457.

The spelling of 384915434 in words is "three hundred eighty-four million, nine hundred fifteen thousand, four hundred thirty-four".