424442631 has 4 divisors (see below), whose sum is σ = 565923512. Its totient is φ = 282961752.

The previous prime is 424442617. The next prime is 424442633. The reversal of 424442631 is 136244424.

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

It is not a de Polignac number, because 424442631 - 2¹⁰ = 424441607 is a prime.

It is a super-2 number, since 2×424442631² = 360303094020404322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424442633) 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, 70740436 + ... + 70740441.

It is an arithmetic number, because the mean of its divisors is an integer number (141480878).

Almost surely, 2^424442631 is an apocalyptic number.

424442631 is a deficient number, since it is larger than the sum of its proper divisors (141480881).

424442631 is a wasteful number, since it uses less digits than its factorization.

424442631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141480880.

The product of its digits is 18432, while the sum is 30.

The square root of 424442631 is about 20602.0055091731. The cubic root of 424442631 is about 751.5184826502.

The spelling of 424442631 in words is "four hundred twenty-four million, four hundred forty-two thousand, six hundred thirty-one".