2595640442 has 8 divisors (see below), whose sum is σ = 3893678100. Its totient is φ = 1297747744.

The previous prime is 2595640441. The next prime is 2595640451. The reversal of 2595640442 is 2440465952.

It can be written as a sum of positive squares in 2 ways, for example, as 1813822921 + 781817521 = 42589^2 + 27961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2595640442.

It is not an unprimeable number, because it can be changed into a prime (2595640441) 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 3 ways as a sum of consecutive naturals, for example, 44534 + ... + 84702.

Almost surely, 2^2595640442 is an apocalyptic number.

2595640442 is a deficient number, since it is larger than the sum of its proper divisors (1298037658).

2595640442 is a wasteful number, since it uses less digits than its factorization.

2595640442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72480.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 2595640442 is about 50947.4282177226. The cubic root of 2595640442 is about 1374.2998867992.

The spelling of 2595640442 in words is "two billion, five hundred ninety-five million, six hundred forty thousand, four hundred forty-two".