2575458340 has 96 divisors (see below), whose sum is σ = 6811580160. Its totient is φ = 796110336.

The previous prime is 2575458313. The next prime is 2575458343. The reversal of 2575458340 is 438545752.

It is a super-2 number, since 2×2575458340² = 13265971322151111200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (2575458343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61806 + ... + 94714.

It is an arithmetic number, because the mean of its divisors is an integer number (70953960).

Almost surely, 2^2575458340 is an apocalyptic number.

2575458340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2575458340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3405790080).

2575458340 is an abundant number, since it is smaller than the sum of its proper divisors (4236121820).

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

2575458340 is a wasteful number, since it uses less digits than its factorization.

2575458340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32981 (or 32979 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 43.

The square root of 2575458340 is about 50748.9737827279. The cubic root of 2575458340 is about 1370.7287117264.

The spelling of 2575458340 in words is "two billion, five hundred seventy-five million, four hundred fifty-eight thousand, three hundred forty".