2657897396 has 120 divisors (see below), whose sum is σ = 5995036320. Its totient is φ = 1022414400.

The previous prime is 2657897393. The next prime is 2657897413. The reversal of 2657897396 is 6937987562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657897393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14684426 + ... + 14684606.

It is an arithmetic number, because the mean of its divisors is an integer number (49958636).

Almost surely, 2^2657897396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2657897396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2997518160).

2657897396 is an abundant number, since it is smaller than the sum of its proper divisors (3337138924).

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

2657897396 is a wasteful number, since it uses less digits than its factorization.

2657897396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 340 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 62.

The square root of 2657897396 is about 51554.7999317231. The cubic root of 2657897396 is about 1385.2008112432.

The spelling of 2657897396 in words is "two billion, six hundred fifty-seven million, eight hundred ninety-seven thousand, three hundred ninety-six".