2497558338 has 144 divisors (see below), whose sum is σ = 6238342656. Its totient is φ = 720720000.

The previous prime is 2497558331. The next prime is 2497558421. The reversal of 2497558338 is 8338557942.

2497558338 is a `hidden beast` number, since 24 + 9 + 7 + 5 + 583 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497558331) 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 71 ways as a sum of consecutive naturals, for example, 4793518 + ... + 4794038.

It is an arithmetic number, because the mean of its divisors is an integer number (43321824).

Almost surely, 2^2497558338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2497558338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3119171328).

2497558338 is an abundant number, since it is smaller than the sum of its proper divisors (3740784318).

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

2497558338 is a wasteful number, since it uses less digits than its factorization.

2497558338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 639 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 2497558338 is about 49975.5774153736. The cubic root of 2497558338 is about 1356.7668183511.

The spelling of 2497558338 in words is "two billion, four hundred ninety-seven million, five hundred fifty-eight thousand, three hundred thirty-eight".