389854466 has 4 divisors (see below), whose sum is σ = 584781702. Its totient is φ = 194927232.

The previous prime is 389854463. The next prime is 389854501. The reversal of 389854466 is 664458983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664458983 = 23 ⋅28889521.

It can be written as a sum of positive squares in only one way, i.e., 315808441 + 74046025 = 17771^2 + 8605^2 .

It is not an unprimeable number, because it can be changed into a prime (389854463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97463615 + ... + 97463618.

Almost surely, 2^389854466 is an apocalyptic number.

389854466 is a deficient number, since it is larger than the sum of its proper divisors (194927236).

389854466 is a wasteful number, since it uses less digits than its factorization.

389854466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194927235.

The product of its digits is 4976640, while the sum is 53.

The square root of 389854466 is about 19744.7326140416. The cubic root of 389854466 is about 730.5234664159.

The spelling of 389854466 in words is "three hundred eighty-nine million, eight hundred fifty-four thousand, four hundred sixty-six".