384557493 has 32 divisors (see below), whose sum is σ = 570882816. Its totient is φ = 229019648.

The previous prime is 384557489. The next prime is 384557501. The reversal of 384557493 is 394755483.

It is not a de Polignac number, because 384557493 - 2² = 384557489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384557423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159505 + ... + 161897.

It is an arithmetic number, because the mean of its divisors is an integer number (17840088).

Almost surely, 2^384557493 is an apocalyptic number.

It is an amenable number.

384557493 is a deficient number, since it is larger than the sum of its proper divisors (186325323).

384557493 is a wasteful number, since it uses less digits than its factorization.

384557493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573.

The product of its digits is 1814400, while the sum is 48.

The square root of 384557493 is about 19610.1375058922. The cubic root of 384557493 is about 727.1998142732.

The spelling of 384557493 in words is "three hundred eighty-four million, five hundred fifty-seven thousand, four hundred ninety-three".