424231636 has 12 divisors (see below), whose sum is σ = 759670912. Its totient is φ = 207182808.

The previous prime is 424231627. The next prime is 424231657. The reversal of 424231636 is 636132424.

It is a junction number, because it is equal to n+sod(n) for n = 424231598 and 424231607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233060 + ... + 1233403.

Almost surely, 2^424231636 is an apocalyptic number.

It is an amenable number.

424231636 is a deficient number, since it is larger than the sum of its proper divisors (335439276).

424231636 is a wasteful number, since it uses less digits than its factorization.

424231636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466510 (or 2466508 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 424231636 is about 20596.8841332858. The cubic root of 424231636 is about 751.3939327008.

The spelling of 424231636 in words is "four hundred twenty-four million, two hundred thirty-one thousand, six hundred thirty-six".