389422081 has 8 divisors (see below), whose sum is σ = 414525600. Its totient is φ = 364779360.

The previous prime is 389422067. The next prime is 389422087. The reversal of 389422081 is 180224983.

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 389422081 - 2⁷ = 389421953 is a prime.

It is a super-2 number, since 2×389422081² = 303299114340741122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389422081.

It is not an unprimeable number, because it can be changed into a prime (389422087) 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, 113455 + ... + 116836.

It is an arithmetic number, because the mean of its divisors is an integer number (51815700).

Almost surely, 2^389422081 is an apocalyptic number.

It is an amenable number.

389422081 is a deficient number, since it is larger than the sum of its proper divisors (25103519).

389422081 is a wasteful number, since it uses less digits than its factorization.

389422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230399.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 389422081 is about 19733.7802004583. The cubic root of 389422081 is about 730.2532936001.

The spelling of 389422081 in words is "three hundred eighty-nine million, four hundred twenty-two thousand, eighty-one".