26813240 has 32 divisors (see below), whose sum is σ = 60616080. Its totient is φ = 10674432.

The previous prime is 26813231. The next prime is 26813249. The reversal of 26813240 is 4231862.

It is an interprime number because it is at equal distance from previous prime (26813231) and next prime (26813249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26813249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7604 + ... + 10556.

Almost surely, 2^26813240 is an apocalyptic number.

26813240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26813240 is an abundant number, since it is smaller than the sum of its proper divisors (33802840).

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

26813240 is a wasteful number, since it uses less digits than its factorization.

26813240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191 (or 3187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 26813240 is about 5178.1502488823. The cubic root of 26813240 is about 299.3066952925.

The spelling of 26813240 in words is "twenty-six million, eight hundred thirteen thousand, two hundred forty".