424140321 has 32 divisors (see below), whose sum is σ = 631411200. Its totient is φ = 251079680.

The previous prime is 424140317. The next prime is 424140323. The reversal of 424140321 is 123041424.

It is a cyclic number.

It is not a de Polignac number, because 424140321 - 2² = 424140317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424140323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347905 + ... + 349121.

It is an arithmetic number, because the mean of its divisors is an integer number (19731600).

Almost surely, 2^424140321 is an apocalyptic number.

It is an amenable number.

424140321 is a deficient number, since it is larger than the sum of its proper divisors (207270879).

424140321 is a wasteful number, since it uses less digits than its factorization.

424140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 424140321 is about 20594.6672952005. The cubic root of 424140321 is about 751.3400168251.

Adding to 424140321 its reverse (123041424), we get a palindrome (547181745).

It can be divided in two parts, 4241403 and 21, that added together give a palindrome (4241424).

The spelling of 424140321 in words is "four hundred twenty-four million, one hundred forty thousand, three hundred twenty-one".