526406540 has 24 divisors (see below), whose sum is σ = 1205950032. Its totient is φ = 191420480.

The previous prime is 526406539. The next prime is 526406549. The reversal of 526406540 is 45604625.

It is a junction number, because it is equal to n+sod(n) for n = 526406497 and 526406506.

It is not an unprimeable number, because it can be changed into a prime (526406549) 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, 1196159 + ... + 1196598.

It is an arithmetic number, because the mean of its divisors is an integer number (50247918).

Almost surely, 2^526406540 is an apocalyptic number.

It is an amenable number.

526406540 is an abundant number, since it is smaller than the sum of its proper divisors (679543492).

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

526406540 is a wasteful number, since it uses less digits than its factorization.

526406540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392777 (or 2392775 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 526406540 is about 22943.5511636712. The cubic root of 526406540 is about 807.4341097786.

The spelling of 526406540 in words is "five hundred twenty-six million, four hundred six thousand, five hundred forty".