2434212421 has 4 divisors (see below), whose sum is σ = 2434624992. Its totient is φ = 2433799852.

The previous prime is 2434212409. The next prime is 2434212427. The reversal of 2434212421 is 1242124342.

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: 1242124342 = 2 ⋅621062171.

It is a cyclic number.

It is not a de Polignac number, because 2434212421 - 2⁷ = 2434212293 is a prime.

It is a super-2 number, since 2×2434212421² = 11850780221101362482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2434212427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197305 + ... + 209278.

It is an arithmetic number, because the mean of its divisors is an integer number (608656248).

Almost surely, 2^2434212421 is an apocalyptic number.

It is an amenable number.

2434212421 is a deficient number, since it is larger than the sum of its proper divisors (412571).

2434212421 is an equidigital number, since it uses as much as digits as its factorization.

2434212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412570.

The product of its digits is 3072, while the sum is 25.

The square root of 2434212421 is about 49337.7383044663. The cubic root of 2434212421 is about 1345.1978299684.

Adding to 2434212421 its reverse (1242124342), we get a palindrome (3676336763).

It can be divided in two parts, 24342 and 12421, that added together give a palindrome (36763).

The spelling of 2434212421 in words is "two billion, four hundred thirty-four million, two hundred twelve thousand, four hundred twenty-one".