424247420 has 36 divisors (see below), whose sum is σ = 931362600. Its totient is φ = 162316704.

The previous prime is 424247407. The next prime is 424247423. The reversal of 424247420 is 24742424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424247423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9470 + ... + 30629.

Almost surely, 2^424247420 is an apocalyptic number.

It is an amenable number.

424247420 is an abundant number, since it is smaller than the sum of its proper divisors (507115180).

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

424247420 is a wasteful number, since it uses less digits than its factorization.

424247420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40154 (or 40129 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 29.

The square root of 424247420 is about 20597.2672944738. The cubic root of 424247420 is about 751.4032513951.

Adding to 424247420 its reverse (24742424), we get a palindrome (448989844).

The spelling of 424247420 in words is "four hundred twenty-four million, two hundred forty-seven thousand, four hundred twenty".