2489461989 has 16 divisors (see below), whose sum is σ = 3857763840. Its totient is φ = 1398438000.

The previous prime is 2489461973. The next prime is 2489462071. The reversal of 2489461989 is 9891649842.

It is not a de Polignac number, because 2489461989 - 2⁴ = 2489461973 is a prime.

It is a super-2 number, since 2×2489461989² = 12394841989351672242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489461969) 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, 1003387 + ... + 1005864.

It is an arithmetic number, because the mean of its divisors is an integer number (241110240).

Almost surely, 2^2489461989 is an apocalyptic number.

It is an amenable number.

2489461989 is a deficient number, since it is larger than the sum of its proper divisors (1368301851).

2489461989 is a wasteful number, since it uses less digits than its factorization.

2489461989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009320.

The product of its digits is 8957952, while the sum is 60.

The square root of 2489461989 is about 49894.5086056572. The cubic root of 2489461989 is about 1355.2991517344.

The spelling of 2489461989 in words is "two billion, four hundred eighty-nine million, four hundred sixty-one thousand, nine hundred eighty-nine".