26500740 has 48 divisors (see below), whose sum is σ = 84803712. Its totient is φ = 6057216.

The previous prime is 26500723. The next prime is 26500741. The reversal of 26500740 is 4700562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26500740.

It is not an unprimeable number, because it can be changed into a prime (26500741) 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 15 ways as a sum of consecutive naturals, for example, 31129 + ... + 31968.

It is an arithmetic number, because the mean of its divisors is an integer number (1766744).

Almost surely, 2^26500740 is an apocalyptic number.

26500740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26500740 is an abundant number, since it is smaller than the sum of its proper divisors (58302972).

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

26500740 is a wasteful number, since it uses less digits than its factorization.

26500740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63116 (or 63114 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 26500740 is about 5147.8869451456. The cubic root of 26500740 is about 298.1393729693.

The spelling of 26500740 in words is "twenty-six million, five hundred thousand, seven hundred forty".