389042481 has 8 divisors (see below), whose sum is σ = 531375264. Its totient is φ = 253035680.

The previous prime is 389042449. The next prime is 389042557. The reversal of 389042481 is 184240983.

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

It is a cyclic number.

It is not a de Polignac number, because 389042481 - 2⁵ = 389042449 is a prime.

It is a super-2 number, since 2×389042481² = 302708104045270722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389042431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581351 + ... + 1581596.

It is an arithmetic number, because the mean of its divisors is an integer number (66421908).

Almost surely, 2^389042481 is an apocalyptic number.

It is an amenable number.

389042481 is a deficient number, since it is larger than the sum of its proper divisors (142332783).

389042481 is a wasteful number, since it uses less digits than its factorization.

389042481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162991.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 389042481 is about 19724.1598300156. The cubic root of 389042481 is about 730.0159382271.

The spelling of 389042481 in words is "three hundred eighty-nine million, forty-two thousand, four hundred eighty-one".