2509898 has 8 divisors (see below), whose sum is σ = 3928608. Its totient is φ = 1200364.

The previous prime is 2509891. The next prime is 2509907. The reversal of 2509898 is 8989052.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2509891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27236 + ... + 27327.

It is an arithmetic number, because the mean of its divisors is an integer number (491076).

2^2509898 is an apocalyptic number.

2509898 is a deficient number, since it is larger than the sum of its proper divisors (1418710).

2509898 is a wasteful number, since it uses less digits than its factorization.

2509898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54588.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2509898 is about 1584.2657605339. The cubic root of 2509898 is about 135.8997603343.

The spelling of 2509898 in words is "two million, five hundred nine thousand, eight hundred ninety-eight".