2597185340 has 12 divisors (see below), whose sum is σ = 5454089256. Its totient is φ = 1038874128.

The previous prime is 2597185321. The next prime is 2597185351. The reversal of 2597185340 is 435817952.

It is a junction number, because it is equal to n+sod(n) for n = 2597185291 and 2597185300.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 64929614 + ... + 64929653.

It is an arithmetic number, because the mean of its divisors is an integer number (454507438).

Almost surely, 2^2597185340 is an apocalyptic number.

2597185340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2597185340 is an abundant number, since it is smaller than the sum of its proper divisors (2856903916).

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

2597185340 is a wasteful number, since it uses less digits than its factorization.

2597185340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129859276 (or 129859274 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2597185340 is about 50962.5876501576. The cubic root of 2597185340 is about 1374.5724890217.

The spelling of 2597185340 in words is "two billion, five hundred ninety-seven million, one hundred eighty-five thousand, three hundred forty".