26220115 has 32 divisors (see below), whose sum is σ = 34546176. Its totient is φ = 19050240.

The previous prime is 26220113. The next prime is 26220119. The reversal of 26220115 is 51102262.

It is not a de Polignac number, because 26220115 - 2¹ = 26220113 is a prime.

It is a super-2 number, since 2×26220115² = 1374988861226450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26220092 and 26220101.

It is not an unprimeable number, because it can be changed into a prime (26220113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315864 + ... + 315946.

It is an arithmetic number, because the mean of its divisors is an integer number (1079568).

Almost surely, 2^26220115 is an apocalyptic number.

26220115 is a deficient number, since it is larger than the sum of its proper divisors (8326061).

26220115 is a wasteful number, since it uses less digits than its factorization.

26220115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 26220115 is about 5120.5580750539. The cubic root of 26220115 is about 297.0832712502.

Adding to 26220115 its reverse (51102262), we get a palindrome (77322377).

It can be divided in two parts, 26220 and 115, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 26220115 in words is "twenty-six million, two hundred twenty thousand, one hundred fifteen".