489429399 has 4 divisors (see below), whose sum is σ = 652572536. Its totient is φ = 326286264.

The previous prime is 489429383. The next prime is 489429407. The reversal of 489429399 is 993924984.

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

It is not a de Polignac number, because 489429399 - 2⁴ = 489429383 is a prime.

It is a super-2 number, since 2×489429399² = 479082273211002402, 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 (489429319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81571564 + ... + 81571569.

It is an arithmetic number, because the mean of its divisors is an integer number (163143134).

Almost surely, 2^489429399 is an apocalyptic number.

489429399 is a deficient number, since it is larger than the sum of its proper divisors (163143137).

489429399 is a wasteful number, since it uses less digits than its factorization.

489429399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163143136.

The product of its digits is 5038848, while the sum is 57.

The square root of 489429399 is about 22123.0513040132. The cubic root of 489429399 is about 788.0673792737.

The spelling of 489429399 in words is "four hundred eighty-nine million, four hundred twenty-nine thousand, three hundred ninety-nine".