424413312421 has 16 divisors (see below), whose sum is σ = 510862950400. Its totient is φ = 344440256688.

The previous prime is 424413312409. The next prime is 424413312481. The reversal of 424413312421 is 124213314424.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 424413312421 - 2³⁷ = 286974358949 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 (424413312481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673125 + ... + 1141018.

It is an arithmetic number, because the mean of its divisors is an integer number (31928934400).

Almost surely, 2^424413312421 is an apocalyptic number.

It is an amenable number.

424413312421 is a deficient number, since it is larger than the sum of its proper divisors (86449637979).

424413312421 is a wasteful number, since it uses less digits than its factorization.

424413312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815928.

The product of its digits is 18432, while the sum is 31.

Adding to 424413312421 its reverse (124213314424), we get a palindrome (548626626845).

The spelling of 424413312421 in words is "four hundred twenty-four billion, four hundred thirteen million, three hundred twelve thousand, four hundred twenty-one".