424538891 has 12 divisors (see below), whose sum is σ = 500811120. Its totient is φ = 358762320.

The previous prime is 424538857. The next prime is 424538903. The reversal of 424538891 is 198835424.

It is a happy number.

It is not a de Polignac number, because 424538891 - 2¹⁸ = 424276747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424538591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57536 + ... + 64493.

It is an arithmetic number, because the mean of its divisors is an integer number (41734260).

Almost surely, 2^424538891 is an apocalyptic number.

424538891 is a deficient number, since it is larger than the sum of its proper divisors (76272229).

424538891 is a wasteful number, since it uses less digits than its factorization.

424538891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122114 (or 122107 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 424538891 is about 20604.3415570602. The cubic root of 424538891 is about 751.5752910351.

The spelling of 424538891 in words is "four hundred twenty-four million, five hundred thirty-eight thousand, eight hundred ninety-one".