26520040 has 16 divisors (see below), whose sum is σ = 59670180. Its totient is φ = 10608000.

The previous prime is 26520037. The next prime is 26520041. The reversal of 26520040 is 4002562.

It can be written as a sum of positive squares in 2 ways, for example, as 26234884 + 285156 = 5122^2 + 534^2 .

It is not an unprimeable number, because it can be changed into a prime (26520041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331461 + ... + 331540.

Almost surely, 2^26520040 is an apocalyptic number.

26520040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26520040 is an abundant number, since it is smaller than the sum of its proper divisors (33150140).

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

26520040 is a wasteful number, since it uses less digits than its factorization.

26520040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663012 (or 663008 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 26520040 is about 5149.7611595102. The cubic root of 26520040 is about 298.2117318745.

The spelling of 26520040 in words is "twenty-six million, five hundred twenty thousand, forty".