389249011 has 4 divisors (see below), whose sum is σ = 389306592. Its totient is φ = 389191432.

The previous prime is 389248973. The next prime is 389249041. The reversal of 389249011 is 110942983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389249011 - 2¹⁹ = 388724723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389249041) 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, 17056 + ... + 32701.

It is an arithmetic number, because the mean of its divisors is an integer number (97326648).

Almost surely, 2^389249011 is an apocalyptic number.

389249011 is a deficient number, since it is larger than the sum of its proper divisors (57581).

389249011 is an equidigital number, since it uses as much as digits as its factorization.

389249011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57580.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 389249011 is about 19729.3945928404. The cubic root of 389249011 is about 730.1450959475.

The spelling of 389249011 in words is "three hundred eighty-nine million, two hundred forty-nine thousand, eleven".