389956141 has 4 divisors (see below), whose sum is σ = 392538784. Its totient is φ = 387373500.

The previous prime is 389956109. The next prime is 389956153. The reversal of 389956141 is 141659983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141659983 = 29 ⋅4884827.

It is a cyclic number.

It is not a de Polignac number, because 389956141 - 2⁵ = 389956109 is a prime.

It is a super-2 number, since 2×389956141² = 304131583807223762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389956091 and 389956100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389956241) 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, 1291095 + ... + 1291396.

It is an arithmetic number, because the mean of its divisors is an integer number (98134696).

Almost surely, 2^389956141 is an apocalyptic number.

It is an amenable number.

389956141 is a deficient number, since it is larger than the sum of its proper divisors (2582643).

389956141 is a wasteful number, since it uses less digits than its factorization.

389956141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582642.

The product of its digits is 233280, while the sum is 46.

The square root of 389956141 is about 19747.3071835124. The cubic root of 389956141 is about 730.5869683324.

The spelling of 389956141 in words is "three hundred eighty-nine million, nine hundred fifty-six thousand, one hundred forty-one".