424423531 has 8 divisors (see below), whose sum is σ = 506145024. Its totient is φ = 347974440.

The previous prime is 424423487. The next prime is 424423541. The reversal of 424423531 is 135324424.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 424423531 - 2²¹ = 422326379 is a prime.

It is a super-2 number, since 2×424423531² = 360270667333015922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 424423531.

It is not an unprimeable number, because it can be changed into a prime (424423541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1317925 + ... + 1318246.

It is an arithmetic number, because the mean of its divisors is an integer number (63268128).

Almost surely, 2^424423531 is an apocalyptic number.

424423531 is a deficient number, since it is larger than the sum of its proper divisors (81721493).

424423531 is a wasteful number, since it uses less digits than its factorization.

424423531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636201.

The product of its digits is 11520, while the sum is 28.

The square root of 424423531 is about 20601.5419568536. The cubic root of 424423531 is about 751.5072096557.

Adding to 424423531 its reverse (135324424), we get a palindrome (559747955).

The spelling of 424423531 in words is "four hundred twenty-four million, four hundred twenty-three thousand, five hundred thirty-one".