2434450021 has 4 divisors (see below), whose sum is σ = 2435618592. Its totient is φ = 2433281452.

The previous prime is 2434450003. The next prime is 2434450043. The reversal of 2434450021 is 1200544342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1200544342 = 2 ⋅600272171.

It is a cyclic number.

It is not a de Polignac number, because 2434450021 - 2⁷ = 2434449893 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 (2434450061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581155 + ... + 585328.

It is an arithmetic number, because the mean of its divisors is an integer number (608904648).

Almost surely, 2^2434450021 is an apocalyptic number.

It is an amenable number.

2434450021 is a deficient number, since it is larger than the sum of its proper divisors (1168571).

2434450021 is a wasteful number, since it uses less digits than its factorization.

2434450021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168570.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2434450021 is about 49340.1461388188. The cubic root of 2434450021 is about 1345.2415961578.

Adding to 2434450021 its reverse (1200544342), we get a palindrome (3634994363).

The spelling of 2434450021 in words is "two billion, four hundred thirty-four million, four hundred fifty thousand, twenty-one".