248220026 has 16 divisors (see below), whose sum is σ = 395936424. Its totient is φ = 116304384.

The previous prime is 248219987. The next prime is 248220029. The reversal of 248220026 is 620022842.

It is a Cunningham number, because it is equal to 15755²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 248094001 + 126025 = 15751^2 + 355^2 .

It is a super-2 number, since 2×248220026² = 123226362614881352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248219977 and 248220004.

It is not an unprimeable number, because it can be changed into a prime (248220029) 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, 7745 + ... + 23588.

Almost surely, 2^248220026 is an apocalyptic number.

248220026 is a deficient number, since it is larger than the sum of its proper divisors (147716398).

248220026 is a wasteful number, since it uses less digits than its factorization.

248220026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31585.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 248220026 is about 15755.0000317360. Note that the first 4 decimals coincide. The cubic root of 248220026 is about 628.4618780893.

Adding to 248220026 its reverse (620022842), we get a palindrome (868242868).

The spelling of 248220026 in words is "two hundred forty-eight million, two hundred twenty thousand, twenty-six".