424551420 has 72 divisors (see below), whose sum is σ = 1289512224. Its totient is φ = 113063808.

The previous prime is 424551419. The next prime is 424551461. The reversal of 424551420 is 24155424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228937 + ... + 230783.

It is an arithmetic number, because the mean of its divisors is an integer number (17909892).

Almost surely, 2^424551420 is an apocalyptic number.

It is an amenable number.

424551420 is an abundant number, since it is smaller than the sum of its proper divisors (864960804).

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

424551420 is a wasteful number, since it uses less digits than its factorization.

424551420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 424551420 is about 20604.6455926813. The cubic root of 424551420 is about 751.5826844639.

The spelling of 424551420 in words is "four hundred twenty-four million, five hundred fifty-one thousand, four hundred twenty".