26304534 has 48 divisors (see below), whose sum is σ = 60434640. Its totient is φ = 8475840.

The previous prime is 26304529. The next prime is 26304539. The reversal of 26304534 is 43540362.

It is an interprime number because it is at equal distance from previous prime (26304529) and next prime (26304539).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 26304498 and 26304507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26304539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241272 + ... + 241380.

It is an arithmetic number, because the mean of its divisors is an integer number (1259055).

Almost surely, 2^26304534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26304534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30217320).

26304534 is an abundant number, since it is smaller than the sum of its proper divisors (34130106).

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

26304534 is a wasteful number, since it uses less digits than its factorization.

26304534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 26304534 is about 5128.7945952241. The cubic root of 26304534 is about 297.4017621645.

Adding to 26304534 its reverse (43540362), we get a palindrome (69844896).

The spelling of 26304534 in words is "twenty-six million, three hundred four thousand, five hundred thirty-four".