389999001 has 16 divisors (see below), whose sum is σ = 594800000. Its totient is φ = 222663168.

The previous prime is 389998993. The next prime is 389999021. The reversal of 389999001 is 100999983.

It is not a de Polignac number, because 389999001 - 2³ = 389998993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389999021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18795 + ... + 33663.

It is an arithmetic number, because the mean of its divisors is an integer number (37175000).

Almost surely, 2^389999001 is an apocalyptic number.

It is an amenable number.

389999001 is a deficient number, since it is larger than the sum of its proper divisors (204800999).

389999001 is a wasteful number, since it uses less digits than its factorization.

389999001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 389999001 is about 19748.3923649496. The cubic root of 389999001 is about 730.6137335735.

The spelling of 389999001 in words is "three hundred eighty-nine million, nine hundred ninety-nine thousand, one".