424540989 has 24 divisors (see below), whose sum is σ = 627524352. Its totient is φ = 276452640.

The previous prime is 424540981. The next prime is 424540999. The reversal of 424540989 is 989045424.

424540989 is a `hidden beast` number, since 4 + 24 + 540 + 9 + 89 = 666.

It is not a de Polignac number, because 424540989 - 2³ = 424540981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424540981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415299 + ... + 416319.

It is an arithmetic number, because the mean of its divisors is an integer number (26146848).

Almost surely, 2^424540989 is an apocalyptic number.

It is an amenable number.

424540989 is a deficient number, since it is larger than the sum of its proper divisors (202983363).

424540989 is a wasteful number, since it uses less digits than its factorization.

424540989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 424540989 is about 20604.3924685976. The cubic root of 424540989 is about 751.5765290861.

The spelling of 424540989 in words is "four hundred twenty-four million, five hundred forty thousand, nine hundred eighty-nine".