26238090 has 64 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 6673920.

The previous prime is 26238077. The next prime is 26238097. The reversal of 26238090 is 9083262.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26238097) 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, 82612 + ... + 82928.

It is an arithmetic number, because the mean of its divisors is an integer number (1030320).

Almost surely, 2^26238090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26238090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32970240).

26238090 is an abundant number, since it is smaller than the sum of its proper divisors (39702390).

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

26238090 is a wasteful number, since it uses less digits than its factorization.

26238090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 26238090 is about 5122.3129541253. The cubic root of 26238090 is about 297.1511434670.

The spelling of 26238090 in words is "twenty-six million, two hundred thirty-eight thousand, ninety".