2581674448 has 20 divisors (see below), whose sum is σ = 5016420000. Its totient is φ = 1287114464.

The previous prime is 2581674439. The next prime is 2581674449. The reversal of 2581674448 is 8444761852.

It is a happy number.

It is a super-2 number, since 2×2581674448² = 13330085910912209408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581674449) 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, 226948 + ... + 238051.

It is an arithmetic number, because the mean of its divisors is an integer number (250821000).

Almost surely, 2^2581674448 is an apocalyptic number.

It is an amenable number.

2581674448 is a deficient number, since it is larger than the sum of its proper divisors (2434745552).

2581674448 is a wasteful number, since it uses less digits than its factorization.

2581674448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465354 (or 465348 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 49.

The square root of 2581674448 is about 50810.1805546881. The cubic root of 2581674448 is about 1371.8306193844.

The spelling of 2581674448 in words is "two billion, five hundred eighty-one million, six hundred seventy-four thousand, four hundred forty-eight".