2478630243 has 16 divisors (see below), whose sum is σ = 3531353760. Its totient is φ = 1540947456.

The previous prime is 2478630241. The next prime is 2478630251. The reversal of 2478630243 is 3420368742.

It is not a de Polignac number, because 2478630243 - 2¹ = 2478630241 is a prime.

It is a super-2 number, since 2×2478630243² = 12287215763028478098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478630241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217380 + ... + 228497.

It is an arithmetic number, because the mean of its divisors is an integer number (220709610).

Almost surely, 2^2478630243 is an apocalyptic number.

2478630243 is a deficient number, since it is larger than the sum of its proper divisors (1052723517).

2478630243 is a wasteful number, since it uses less digits than its factorization.

2478630243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446006.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 2478630243 is about 49785.8438012253. The cubic root of 2478630243 is about 1353.3306408269.

Adding to 2478630243 its reverse (3420368742), we get a palindrome (5898998985).

The spelling of 2478630243 in words is "two billion, four hundred seventy-eight million, six hundred thirty thousand, two hundred forty-three".