26631424 has 36 divisors (see below), whose sum is σ = 55482336. Its totient is φ = 12733952.

The previous prime is 26631421. The next prime is 26631431. The reversal of 26631424 is 42413662.

It is a junction number, because it is equal to n+sod(n) for n = 26631392 and 26631401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26631421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3627 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (1541176).

Almost surely, 2^26631424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26631424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27741168).

26631424 is an abundant number, since it is smaller than the sum of its proper divisors (28850912).

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

26631424 is an equidigital number, since it uses as much as digits as its factorization.

26631424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562 (or 4548 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 26631424 is about 5160.5643102281. The cubic root of 26631424 is about 298.6286445362.

The spelling of 26631424 in words is "twenty-six million, six hundred thirty-one thousand, four hundred twenty-four".