534444021 has 32 divisors (see below), whose sum is σ = 822441600. Its totient is φ = 342714240.

The previous prime is 534444017. The next prime is 534444047. The reversal of 534444021 is 120444435.

It is a happy number.

It is not a de Polignac number, because 534444021 - 2² = 534444017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534444121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85906 + ... + 91916.

It is an arithmetic number, because the mean of its divisors is an integer number (25701300).

Almost surely, 2^534444021 is an apocalyptic number.

It is an amenable number.

534444021 is a deficient number, since it is larger than the sum of its proper divisors (287997579).

534444021 is a wasteful number, since it uses less digits than its factorization.

534444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146 (or 6140 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 534444021 is about 23118.0453542249. The cubic root of 534444021 is about 811.5228279665.

Adding to 534444021 its reverse (120444435), we get a palindrome (654888456).

The spelling of 534444021 in words is "five hundred thirty-four million, four hundred forty-four thousand, twenty-one".