424406644420 has 24 divisors (see below), whose sum is σ = 972277040448. Its totient is φ = 154329688800.

The previous prime is 424406644399. The next prime is 424406644421. The reversal of 424406644420 is 24446604424.

It is a happy number.

It is a super-3 number, since 3×424406644420³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (424406644421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964560336 + ... + 964560775.

It is an arithmetic number, because the mean of its divisors is an integer number (40511543352).

Almost surely, 2^424406644420 is an apocalyptic number.

It is an amenable number.

424406644420 is an abundant number, since it is smaller than the sum of its proper divisors (547870396028).

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

424406644420 is a wasteful number, since it uses less digits than its factorization.

424406644420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929121131 (or 1929121129 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 40.

The spelling of 424406644420 in words is "four hundred twenty-four billion, four hundred six million, six hundred forty-four thousand, four hundred twenty".