26678240 has 24 divisors (see below), whose sum is σ = 63027720. Its totient is φ = 10671232.

The previous prime is 26678237. The next prime is 26678243. The reversal of 26678240 is 4287662.

It is an interprime number because it is at equal distance from previous prime (26678237) and next prime (26678243).

It is a self number, because there is not a number n which added to its sum of digits gives 26678240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26678243) 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, 83210 + ... + 83529.

It is an arithmetic number, because the mean of its divisors is an integer number (2626155).

Almost surely, 2^26678240 is an apocalyptic number.

26678240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26678240 is an abundant number, since it is smaller than the sum of its proper divisors (36349480).

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

26678240 is a wasteful number, since it uses less digits than its factorization.

26678240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166754 (or 166746 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 26678240 is about 5165.0982565678. The cubic root of 26678240 is about 298.8035308452.

The spelling of 26678240 in words is "twenty-six million, six hundred seventy-eight thousand, two hundred forty".