2409988 has 48 divisors (see below), whose sum is σ = 5249664. Its totient is φ = 944640.

The previous prime is 2409983. The next prime is 2409997. The reversal of 2409988 is 8899042.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2409988.

It is not an unprimeable number, because it can be changed into a prime (2409983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28995 + ... + 29077.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

2^2409988 is an apocalyptic number.

2409988 is a gapful number since it is divisible by the number (28) 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 2409988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624832).

2409988 is an abundant number, since it is smaller than the sum of its proper divisors (2839676).

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

2409988 is a wasteful number, since it uses less digits than its factorization.

2409988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2409988 is about 1552.4136046814. The cubic root of 2409988 is about 134.0720634140.

The spelling of 2409988 in words is "two million, four hundred nine thousand, nine hundred eighty-eight".