526444421 has 8 divisors (see below), whose sum is σ = 533174400. Its totient is φ = 519744400.

The previous prime is 526444417. The next prime is 526444441. The reversal of 526444421 is 124444625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 526444421 - 2² = 526444417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526444411) 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, 29000 + ... + 43518.

It is an arithmetic number, because the mean of its divisors is an integer number (66646800).

Almost surely, 2^526444421 is an apocalyptic number.

It is an amenable number.

526444421 is a deficient number, since it is larger than the sum of its proper divisors (6729979).

526444421 is a wasteful number, since it uses less digits than its factorization.

526444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979.

The product of its digits is 30720, while the sum is 32.

The square root of 526444421 is about 22944.3766749066. The cubic root of 526444421 is about 807.4534773684.

The spelling of 526444421 in words is "five hundred twenty-six million, four hundred forty-four thousand, four hundred twenty-one".