2495921838 has 32 divisors (see below), whose sum is σ = 5039638560. Its totient is φ = 824046720.

The previous prime is 2495921837. The next prime is 2495921849. The reversal of 2495921838 is 8381295942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495921837) 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 15 ways as a sum of consecutive naturals, for example, 266068 + ... + 275288.

It is an arithmetic number, because the mean of its divisors is an integer number (157488705).

Almost surely, 2^2495921838 is an apocalyptic number.

2495921838 is an abundant number, since it is smaller than the sum of its proper divisors (2543716722).

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

2495921838 is a wasteful number, since it uses less digits than its factorization.

2495921838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9652.

The product of its digits is 1244160, while the sum is 51.

The square root of 2495921838 is about 49959.2017350157. The cubic root of 2495921838 is about 1356.4704176632.

The spelling of 2495921838 in words is "two billion, four hundred ninety-five million, nine hundred twenty-one thousand, eight hundred thirty-eight".