26406222 has 16 divisors (see below), whose sum is σ = 52872960. Its totient is φ = 8791992.

The previous prime is 26406199. The next prime is 26406223. The reversal of 26406222 is 22260462.

It is a junction number, because it is equal to n+sod(n) for n = 26406192 and 26406201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26406223) 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, 4779 + ... + 8697.

It is an arithmetic number, because the mean of its divisors is an integer number (3304560).

Almost surely, 2^26406222 is an apocalyptic number.

26406222 is an abundant number, since it is smaller than the sum of its proper divisors (26466738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26406222 is a wasteful number, since it uses less digits than its factorization.

26406222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 26406222 is about 5138.6984733491. The cubic root of 26406222 is about 297.7845010466.

Adding to 26406222 its reverse (22260462), we get a palindrome (48666684).

Subtracting from 26406222 its reverse (22260462), we obtain a triangular number (4145760 = T₂₈₇₉).

The spelling of 26406222 in words is "twenty-six million, four hundred six thousand, two hundred twenty-two".