424424140 has 48 divisors (see below), whose sum is σ = 1022579712. Its totient is φ = 144950976.

The previous prime is 424424137. The next prime is 424424171. The reversal of 424424140 is 41424424.

It is a super-2 number, since 2×424424140² = 360271701229479200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31057 + ... + 42583.

It is an arithmetic number, because the mean of its divisors is an integer number (21303744).

Almost surely, 2^424424140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424424140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511289856).

424424140 is an abundant number, since it is smaller than the sum of its proper divisors (598155572).

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

424424140 is a wasteful number, since it uses less digits than its factorization.

424424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806 (or 11804 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 424424140 is about 20601.5567372954. The cubic root of 424424140 is about 751.5075690983.

Adding to 424424140 its reverse (41424424), we get a palindrome (465848564).

The spelling of 424424140 in words is "four hundred twenty-four million, four hundred twenty-four thousand, one hundred forty".