26040024240 has 80 divisors (see below), whose sum is σ = 81745958400. Its totient is φ = 6856102656.

The previous prime is 26040024221. The next prime is 26040024271. The reversal of 26040024240 is 4242004062.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 26040024240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667750 + ... + 705669.

It is an arithmetic number, because the mean of its divisors is an integer number (1021824480).

Almost surely, 2^26040024240 is an apocalyptic number.

26040024240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26040024240 is an abundant number, since it is smaller than the sum of its proper divisors (55705934160).

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

26040024240 is a wasteful number, since it uses less digits than its factorization.

26040024240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373514 (or 1373508 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 26040024240 in words is "twenty-six billion, forty million, twenty-four thousand, two hundred forty".