389454418 has 8 divisors (see below), whose sum is σ = 590204412. Its totient is φ = 192719616.

The previous prime is 389454413. The next prime is 389454431. The reversal of 389454418 is 814454983.

It can be written as a sum of positive squares in 2 ways, for example, as 349802209 + 39652209 = 18703^2 + 6297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (389454413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003555 + ... + 1003942.

Almost surely, 2^389454418 is an apocalyptic number.

389454418 is a deficient number, since it is larger than the sum of its proper divisors (200749994).

389454418 is a wasteful number, since it uses less digits than its factorization.

389454418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007596.

The product of its digits is 552960, while the sum is 46.

The square root of 389454418 is about 19734.5995145582. The cubic root of 389454418 is about 730.2735060708.

The spelling of 389454418 in words is "three hundred eighty-nine million, four hundred fifty-four thousand, four hundred eighteen".