26299040 has 96 divisors (see below), whose sum is σ = 67314240. Its totient is φ = 9676800.

The previous prime is 26299037. The next prime is 26299043. The reversal of 26299040 is 4099262.

26299040 is nontrivially palindromic in base 9.

It is an interprime number because it is at equal distance from previous prime (26299037) and next prime (26299043).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 26298988 and 26299006.

It is not an unprimeable number, because it can be changed into a prime (26299043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124535 + ... + 124745.

It is an arithmetic number, because the mean of its divisors is an integer number (701190).

Almost surely, 2^26299040 is an apocalyptic number.

26299040 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 26299040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33657120).

26299040 is an abundant number, since it is smaller than the sum of its proper divisors (41015200).

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

26299040 is a wasteful number, since it uses less digits than its factorization.

26299040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 26299040 is about 5128.2589638200. The cubic root of 26299040 is about 297.3810554802.

The spelling of 26299040 in words is "twenty-six million, two hundred ninety-nine thousand, forty".