384890474 has 4 divisors (see below), whose sum is σ = 577335714. Its totient is φ = 192445236.

The previous prime is 384890461. The next prime is 384890479. The reversal of 384890474 is 474098483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474098483 = 1187 ⋅399409.

It can be written as a sum of positive squares in only one way, i.e., 275792449 + 109098025 = 16607^2 + 10445^2 .

It is not an unprimeable number, because it can be changed into a prime (384890479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96222617 + ... + 96222620.

Almost surely, 2^384890474 is an apocalyptic number.

384890474 is a deficient number, since it is larger than the sum of its proper divisors (192445240).

384890474 is a wasteful number, since it uses less digits than its factorization.

384890474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192445239.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 384890474 is about 19618.6256909091. The cubic root of 384890474 is about 727.4096432066.

The spelling of 384890474 in words is "three hundred eighty-four million, eight hundred ninety thousand, four hundred seventy-four".