424165989 has 32 divisors (see below), whose sum is σ = 620605440. Its totient is φ = 256117248.

The previous prime is 424165961. The next prime is 424165991. The reversal of 424165989 is 989561424.

It is not a de Polignac number, because 424165989 - 2⁵ = 424165957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424165909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1090207 + ... + 1090595.

It is an arithmetic number, because the mean of its divisors is an integer number (19393920).

Almost surely, 2^424165989 is an apocalyptic number.

It is an amenable number.

424165989 is a deficient number, since it is larger than the sum of its proper divisors (196439451).

424165989 is a wasteful number, since it uses less digits than its factorization.

424165989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 622080, while the sum is 48.

The square root of 424165989 is about 20595.2904568010. The cubic root of 424165989 is about 751.3551729779.

The spelling of 424165989 in words is "four hundred twenty-four million, one hundred sixty-five thousand, nine hundred eighty-nine".