2439098081 has 4 divisors (see below), whose sum is σ = 2787540672. Its totient is φ = 2090655492.

The previous prime is 2439098033. The next prime is 2439098087. The reversal of 2439098081 is 1808909342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1808909342 = 2 ⋅904454671.

It is a cyclic number.

It is not a de Polignac number, because 2439098081 - 2³⁰ = 1365356257 is a prime.

It is a super-2 number, since 2×2439098081² = 11898398897475765122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2439098087) 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, 174221285 + ... + 174221298.

It is an arithmetic number, because the mean of its divisors is an integer number (696885168).

Almost surely, 2^2439098081 is an apocalyptic number.

It is an amenable number.

2439098081 is a deficient number, since it is larger than the sum of its proper divisors (348442591).

2439098081 is an equidigital number, since it uses as much as digits as its factorization.

2439098081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348442590.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2439098081 is about 49387.2258888875. The cubic root of 2439098081 is about 1346.0972019248.

The spelling of 2439098081 in words is "two billion, four hundred thirty-nine million, ninety-eight thousand, eighty-one".