469918489 has 4 divisors (see below), whose sum is σ = 470171520. Its totient is φ = 469665460.

The previous prime is 469918483. The next prime is 469918499. The reversal of 469918489 is 984819964.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469918489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469918483) 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 3 ways as a sum of consecutive naturals, for example, 123709 + ... + 127450.

It is an arithmetic number, because the mean of its divisors is an integer number (117542880).

Almost surely, 2^469918489 is an apocalyptic number.

It is an amenable number.

469918489 is a deficient number, since it is larger than the sum of its proper divisors (253031).

469918489 is a wasteful number, since it uses less digits than its factorization.

469918489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253030.

The product of its digits is 4478976, while the sum is 58.

The square root of 469918489 is about 21677.6033961321. The cubic root of 469918489 is about 777.4530605823.

The spelling of 469918489 in words is "four hundred sixty-nine million, nine hundred eighteen thousand, four hundred eighty-nine".