424223501 has 8 divisors (see below), whose sum is σ = 465476760. Its totient is φ = 384201792.

The previous prime is 424223473. The next prime is 424223521. The reversal of 424223501 is 105322424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13147876 + 411075625 = 3626^2 + 20275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 424223501 - 2¹⁸ = 423961357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424223521) 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, 307166 + ... + 308543.

It is an arithmetic number, because the mean of its divisors is an integer number (58184595).

Almost surely, 2^424223501 is an apocalyptic number.

It is an amenable number.

424223501 is a deficient number, since it is larger than the sum of its proper divisors (41253259).

424223501 is a wasteful number, since it uses less digits than its factorization.

424223501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615775.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 424223501 is about 20596.6866510126. The cubic root of 424223501 is about 751.3891297990.

Adding to 424223501 its reverse (105322424), we get a palindrome (529545925).

The spelling of 424223501 in words is "four hundred twenty-four million, two hundred twenty-three thousand, five hundred one".