26229630 has 128 divisors (see below), whose sum is σ = 76723200. Its totient is φ = 5612544.

The previous prime is 26229583. The next prime is 26229631. The reversal of 26229630 is 3692262.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26229631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 359274 + ... + 359346.

It is an arithmetic number, because the mean of its divisors is an integer number (599400).

Almost surely, 2^26229630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26229630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38361600).

26229630 is an abundant number, since it is smaller than the sum of its proper divisors (50493570).

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

26229630 is a wasteful number, since it uses less digits than its factorization.

26229630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 26229630 is about 5121.4870887273. The cubic root of 26229630 is about 297.1192030207.

It can be divided in two parts, 262 and 29630, that added together give a palindrome (29892).

The spelling of 26229630 in words is "twenty-six million, two hundred twenty-nine thousand, six hundred thirty".