26318240 has 48 divisors (see below), whose sum is σ = 66964968. Its totient is φ = 9716736.

The previous prime is 26318239. The next prime is 26318273. The reversal of 26318240 is 4281362.

It can be written as a sum of positive squares in 4 ways, for example, as 7203856 + 19114384 = 2684^2 + 4372^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4247 + ... + 8406.

Almost surely, 2^26318240 is an apocalyptic number.

26318240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26318240 is an abundant number, since it is smaller than the sum of its proper divisors (40646728).

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

26318240 is a wasteful number, since it uses less digits than its factorization.

26318240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12681 (or 12673 counting only the distinct ones).

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

The square root of 26318240 is about 5130.1306026260. The cubic root of 26318240 is about 297.4534070101.

The spelling of 26318240 in words is "twenty-six million, three hundred eighteen thousand, two hundred forty".