2478461138 has 16 divisors (see below), whose sum is σ = 3735135456. Its totient is φ = 1233429120.

The previous prime is 2478461131. The next prime is 2478461147. The reversal of 2478461138 is 8311648742.

It is a super-2 number, since 2×2478461138² = 12285539225152510088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2478461131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442745 + ... + 448307.

It is an arithmetic number, because the mean of its divisors is an integer number (233445966).

Almost surely, 2^2478461138 is an apocalyptic number.

2478461138 is a deficient number, since it is larger than the sum of its proper divisors (1256674318).

2478461138 is a wasteful number, since it uses less digits than its factorization.

2478461138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569.

The product of its digits is 258048, while the sum is 44.

The square root of 2478461138 is about 49784.1454481243. The cubic root of 2478461138 is about 1353.2998630504.

The spelling of 2478461138 in words is "two billion, four hundred seventy-eight million, four hundred sixty-one thousand, one hundred thirty-eight".