424042429 has 4 divisors (see below), whose sum is σ = 424804284. Its totient is φ = 423280576.

The previous prime is 424042357. The next prime is 424042433. The reversal of 424042429 is 924240424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193154404 + 230888025 = 13898^2 + 15195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424042429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424042429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424046429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380092 + ... + 381205.

It is an arithmetic number, because the mean of its divisors is an integer number (106201071).

Almost surely, 2^424042429 is an apocalyptic number.

It is an amenable number.

424042429 is a deficient number, since it is larger than the sum of its proper divisors (761855).

424042429 is an equidigital number, since it uses as much as digits as its factorization.

424042429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761854.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 424042429 is about 20592.2905233973. The cubic root of 424042429 is about 751.2822090411.

The spelling of 424042429 in words is "four hundred twenty-four million, forty-two thousand, four hundred twenty-nine".