2001022434 has 32 divisors (see below), whose sum is σ = 4708290240. Its totient is φ = 627771456.

The previous prime is 2001022433. The next prime is 2001022447. The reversal of 2001022434 is 4342201002.

2001022434 is a `hidden beast` number, since 200 + 10 + 22 + 434 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001022433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088964 + ... + 1090799.

It is an arithmetic number, because the mean of its divisors is an integer number (147134070).

Almost surely, 2^2001022434 is an apocalyptic number.

2001022434 is an abundant number, since it is smaller than the sum of its proper divisors (2707267806).

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

2001022434 is a wasteful number, since it uses less digits than its factorization.

2001022434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179791 (or 2179785 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2001022434 is about 44732.7892490509. The cubic root of 2001022434 is about 1260.1357110060.

Adding to 2001022434 its reverse (4342201002), we get a palindrome (6343223436).

The spelling of 2001022434 in words is "two billion, one million, twenty-two thousand, four hundred thirty-four".