2421046421 has 4 divisors (see below), whose sum is σ = 2434572000. Its totient is φ = 2407520844.

The previous prime is 2421046399. The next prime is 2421046427. The reversal of 2421046421 is 1246401242.

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.

It is a cyclic number.

It is not a de Polignac number, because 2421046421 - 2¹⁰ = 2421045397 is a prime.

It is a super-2 number, since 2×2421046421² = 11722931545273818482, 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 (2421046427) 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, 6762521 + ... + 6762878.

It is an arithmetic number, because the mean of its divisors is an integer number (608643000).

Almost surely, 2^2421046421 is an apocalyptic number.

It is an amenable number.

2421046421 is a deficient number, since it is larger than the sum of its proper divisors (13525579).

2421046421 is a wasteful number, since it uses less digits than its factorization.

2421046421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525578.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2421046421 is about 49204.1301213628. The cubic root of 2421046421 is about 1342.7681732013.

Adding to 2421046421 its reverse (1246401242), we get a palindrome (3667447663).

The spelling of 2421046421 in words is "two billion, four hundred twenty-one million, forty-six thousand, four hundred twenty-one".