424939631 has 4 divisors (see below), whose sum is σ = 434821992. Its totient is φ = 415057272.

The previous prime is 424939607. The next prime is 424939663. The reversal of 424939631 is 136939424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424939631 is a prime.

It is a super-2 number, since 2×424939631² = 361147379988832322, 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 (424959631) 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 3 ways as a sum of consecutive naturals, for example, 4941116 + ... + 4941201.

It is an arithmetic number, because the mean of its divisors is an integer number (108705498).

Almost surely, 2^424939631 is an apocalyptic number.

424939631 is a deficient number, since it is larger than the sum of its proper divisors (9882361).

424939631 is an equidigital number, since it uses as much as digits as its factorization.

424939631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882360.

The product of its digits is 139968, while the sum is 41.

The square root of 424939631 is about 20614.0639127757. The cubic root of 424939631 is about 751.8116977740.

The spelling of 424939631 in words is "four hundred twenty-four million, nine hundred thirty-nine thousand, six hundred thirty-one".