2597861340 has 72 divisors (see below), whose sum is σ = 8063463408. Its totient is φ = 676650240.

The previous prime is 2597861309. The next prime is 2597861363. The reversal of 2597861340 is 431687952.

2597861340 is a `hidden beast` number, since 2 + 597 + 8 + 6 + 13 + 40 = 666.

2597861340 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

2597861340 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160081 + ... + 175560.

It is a 1-persistent number, because it is pandigital, but 2⋅2597861340 = 5195722680 is not.

Almost surely, 2^2597861340 is an apocalyptic number.

2597861340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2597861340 is an abundant number, since it is smaller than the sum of its proper divisors (5465602068).

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

2597861340 is a wasteful number, since it uses less digits than its factorization.

2597861340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335699 (or 335694 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2597861340 is about 50969.2195349311. The cubic root of 2597861340 is about 1374.6917373968.

The spelling of 2597861340 in words is "two billion, five hundred ninety-seven million, eight hundred sixty-one thousand, three hundred forty".