389895454 has 32 divisors (see below), whose sum is σ = 644130144. Its totient is φ = 175893120.

The previous prime is 389895449. The next prime is 389895487. The reversal of 389895454 is 454598983.

It is a super-2 number, since 2×389895454² = 304036930099732232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389895395 and 389895404.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 720424 + ... + 720964.

It is an arithmetic number, because the mean of its divisors is an integer number (20129067).

Almost surely, 2^389895454 is an apocalyptic number.

389895454 is a deficient number, since it is larger than the sum of its proper divisors (254234690).

389895454 is a wasteful number, since it uses less digits than its factorization.

389895454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 6220800, while the sum is 55.

The square root of 389895454 is about 19745.7705344714. The cubic root of 389895454 is about 730.5490671201.

The spelling of 389895454 in words is "three hundred eighty-nine million, eight hundred ninety-five thousand, four hundred fifty-four".