26072240 has 40 divisors (see below), whose sum is σ = 62579328. Its totient is φ = 10091520.

The previous prime is 26072239. The next prime is 26072243. The reversal of 26072240 is 4227062.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26072243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777 + ... + 7736.

Almost surely, 2^26072240 is an apocalyptic number.

26072240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26072240 is an abundant number, since it is smaller than the sum of its proper divisors (36507088).

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

26072240 is a wasteful number, since it uses less digits than its factorization.

26072240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557 (or 10551 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 26072240 is about 5106.0983147605. The cubic root of 26072240 is about 296.5237258337.

The spelling of 26072240 in words is "twenty-six million, seventy-two thousand, two hundred forty".