424321240 has 64 divisors (see below), whose sum is σ = 1095197760. Its totient is φ = 144936960.

The previous prime is 424321213. The next prime is 424321279. The reversal of 424321240 is 42123424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75984 + ... + 81376.

It is an arithmetic number, because the mean of its divisors is an integer number (17112465).

Almost surely, 2^424321240 is an apocalyptic number.

424321240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547598880).

424321240 is an abundant number, since it is smaller than the sum of its proper divisors (670876520).

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

424321240 is a wasteful number, since it uses less digits than its factorization.

424321240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5688 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 424321240 is about 20599.0592018179. The cubic root of 424321240 is about 751.4468308164.

Adding to 424321240 its reverse (42123424), we get a palindrome (466444664).

The spelling of 424321240 in words is "four hundred twenty-four million, three hundred twenty-one thousand, two hundred forty".