26489240 has 16 divisors (see below), whose sum is σ = 59600880. Its totient is φ = 10595680.

The previous prime is 26489227. The next prime is 26489257. The reversal of 26489240 is 4298462.

It is a self number, because there is not a number n which added to its sum of digits gives 26489240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331076 + ... + 331155.

It is an arithmetic number, because the mean of its divisors is an integer number (3725055).

Almost surely, 2^26489240 is an apocalyptic number.

26489240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26489240 is an abundant number, since it is smaller than the sum of its proper divisors (33111640).

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

26489240 is a wasteful number, since it uses less digits than its factorization.

26489240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662242 (or 662238 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 26489240 is about 5146.7698607962. The cubic root of 26489240 is about 298.0962408548.

The spelling of 26489240 in words is "twenty-six million, four hundred eighty-nine thousand, two hundred forty".