2489669460 has 120 divisors (see below), whose sum is σ = 7835468256. Its totient is φ = 661763520.

The previous prime is 2489669447. The next prime is 2489669467. The reversal of 2489669460 is 649669842.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 2489669397 and 2489669406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489669467) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 533899 + ... + 538541.

Almost surely, 2^2489669460 is an apocalyptic number.

2489669460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2489669460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3917734128).

2489669460 is an abundant number, since it is smaller than the sum of its proper divisors (5345798796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2489669460 is a wasteful number, since it uses less digits than its factorization.

2489669460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995 (or 4984 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 2489669460 is about 49896.5876588770. The cubic root of 2489669460 is about 1355.3368007606.

The spelling of 2489669460 in words is "two billion, four hundred eighty-nine million, six hundred sixty-nine thousand, four hundred sixty".