434001021 has 32 divisors (see below), whose sum is σ = 629207040. Its totient is φ = 265192704.

The previous prime is 434001019. The next prime is 434001077. The reversal of 434001021 is 120100434.

It is not a de Polignac number, because 434001021 - 2¹ = 434001019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434008021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276180 + ... + 277746.

It is an arithmetic number, because the mean of its divisors is an integer number (19662720).

Almost surely, 2^434001021 is an apocalyptic number.

It is an amenable number.

434001021 is a deficient number, since it is larger than the sum of its proper divisors (195206019).

434001021 is a wasteful number, since it uses less digits than its factorization.

434001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 434001021 is about 20832.6911607694. The cubic root of 434001021 is about 757.1180215336.

Adding to 434001021 its reverse (120100434), we get a palindrome (554101455).

The spelling of 434001021 in words is "four hundred thirty-four million, one thousand, twenty-one".