2489616388 has 24 divisors (see below), whose sum is σ = 4981465664. Its totient is φ = 1066500000.

The previous prime is 2489616383. The next prime is 2489616413. The reversal of 2489616388 is 8836169842.

It is not an unprimeable number, because it can be changed into a prime (2489616383) 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, 47638 + ... + 85138.

Almost surely, 2^2489616388 is an apocalyptic number.

2489616388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2489616388 is an abundant number, since it is smaller than the sum of its proper divisors (2491849276).

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

2489616388 is a wasteful number, since it uses less digits than its factorization.

2489616388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39883 (or 39881 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 2489616388 is about 49896.0558361079. The cubic root of 2489616388 is about 1355.3271701722.

The spelling of 2489616388 in words is "two billion, four hundred eighty-nine million, six hundred sixteen thousand, three hundred eighty-eight".