26463240 has 128 divisors (see below), whose sum is σ = 89424000. Its totient is φ = 6960384.

The previous prime is 26463233. The next prime is 26463247. The reversal of 26463240 is 4236462.

26463240 is a `hidden beast` number, since 26 + 4 + 632 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (26463233) and next prime (26463247).

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

It is not an unprimeable number, because it can be changed into a prime (26463247) 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, 115446 + ... + 115674.

It is an arithmetic number, because the mean of its divisors is an integer number (698625).

Almost surely, 2^26463240 is an apocalyptic number.

26463240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26463240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44712000).

26463240 is an abundant number, since it is smaller than the sum of its proper divisors (62960760).

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

26463240 is a wasteful number, since it uses less digits than its factorization.

26463240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 26463240 is about 5144.2433845999. The cubic root of 26463240 is about 297.9986787323.

It can be divided in two parts, 2646 and 3240, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 26463240 in words is "twenty-six million, four hundred sixty-three thousand, two hundred forty".