4389389049 has 8 divisors (see below), whose sum is σ = 5855273632. Its totient is φ = 2924881920.

The previous prime is 4389388999. The next prime is 4389389071. The reversal of 4389389049 is 9409839834.

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

It is not a de Polignac number, because 4389389049 - 2¹⁵ = 4389356281 is a prime.

It is a super-2 number, since 2×4389389049² = 38533472446962248802, 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 4389389049.

It is not an unprimeable number, because it can be changed into a prime (4389389099) 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, 336904 + ... + 349689.

It is an arithmetic number, because the mean of its divisors is an integer number (731909204).

Almost surely, 2^4389389049 is an apocalyptic number.

It is an amenable number.

4389389049 is a deficient number, since it is larger than the sum of its proper divisors (1465884583).

4389389049 is a wasteful number, since it uses less digits than its factorization.

4389389049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688727.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The square root of 4389389049 is about 66252.4644749160. The cubic root of 4389389049 is about 1637.3242418356.

The spelling of 4389389049 in words is "four billion, three hundred eighty-nine million, three hundred eighty-nine thousand, forty-nine".