2478371842 has 8 divisors (see below), whose sum is σ = 3845749500. Its totient is φ = 1196455344.

The previous prime is 2478371789. The next prime is 2478371891. The reversal of 2478371842 is 2481738742.

It can be written as a sum of positive squares in 2 ways, for example, as 2476953361 + 1418481 = 49769^2 + 1191^2 .

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

It is a super-2 number, since 2×2478371842² = 12284653974436945928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478371792 and 2478371801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21365217 + ... + 21365332.

Almost surely, 2^2478371842 is an apocalyptic number.

2478371842 is a deficient number, since it is larger than the sum of its proper divisors (1367377658).

2478371842 is a wasteful number, since it uses less digits than its factorization.

2478371842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42730580.

The product of its digits is 602112, while the sum is 46.

The square root of 2478371842 is about 49783.2486083421. The cubic root of 2478371842 is about 1353.2836102617.

The spelling of 2478371842 in words is "two billion, four hundred seventy-eight million, three hundred seventy-one thousand, eight hundred forty-two".