2597728234 has 4 divisors (see below), whose sum is σ = 3896592354. Its totient is φ = 1298864116.

The previous prime is 2597728213. The next prime is 2597728267. The reversal of 2597728234 is 4328277952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2504702209 + 93026025 = 50047^2 + 9645^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649432057 + ... + 649432060.

Almost surely, 2^2597728234 is an apocalyptic number.

2597728234 is a deficient number, since it is larger than the sum of its proper divisors (1298864120).

2597728234 is a wasteful number, since it uses less digits than its factorization.

2597728234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298864119.

The product of its digits is 1693440, while the sum is 49.

The square root of 2597728234 is about 50967.9137693510. The cubic root of 2597728234 is about 1374.6682587453.

The spelling of 2597728234 in words is "two billion, five hundred ninety-seven million, seven hundred twenty-eight thousand, two hundred thirty-four".