424552989 has 16 divisors (see below), whose sum is σ = 647958528. Its totient is φ = 242218992.

The previous prime is 424552987. The next prime is 424552993. The reversal of 424552989 is 989255424.

It is not a de Polignac number, because 424552989 - 2¹ = 424552987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424552981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2037 + ... + 29210.

It is an arithmetic number, because the mean of its divisors is an integer number (40497408).

Almost surely, 2^424552989 is an apocalyptic number.

It is an amenable number.

424552989 is a deficient number, since it is larger than the sum of its proper divisors (223405539).

424552989 is a wasteful number, since it uses less digits than its factorization.

424552989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31904.

The product of its digits is 1036800, while the sum is 48.

The square root of 424552989 is about 20604.6836665842. The cubic root of 424552989 is about 751.5836103288.

The spelling of 424552989 in words is "four hundred twenty-four million, five hundred fifty-two thousand, nine hundred eighty-nine".