424232440 has 32 divisors (see below), whose sum is σ = 955540080. Its totient is φ = 169512192.

The previous prime is 424232407. The next prime is 424232441. The reversal of 424232440 is 44232424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424232441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36187 + ... + 46453.

Almost surely, 2^424232440 is an apocalyptic number.

424232440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424232440 is an abundant number, since it is smaller than the sum of its proper divisors (531307640).

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

424232440 is a wasteful number, since it uses less digits than its factorization.

424232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311 (or 11307 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 424232440 is about 20596.9036507918. The cubic root of 424232440 is about 751.3944073789.

Adding to 424232440 its reverse (44232424), we get a palindrome (468464864).

The spelling of 424232440 in words is "four hundred twenty-four million, two hundred thirty-two thousand, four hundred forty".