469540189 has 4 divisors (see below), whose sum is σ = 485731260. Its totient is φ = 453349120.

The previous prime is 469540171. The next prime is 469540219. The reversal of 469540189 is 981045964.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103124025 + 366416164 = 10155^2 + 19142^2 .

It is a cyclic number.

It is not a de Polignac number, because 469540189 - 2⁵ = 469540157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469540129) 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, 8095492 + ... + 8095549.

It is an arithmetic number, because the mean of its divisors is an integer number (121432815).

Almost surely, 2^469540189 is an apocalyptic number.

It is an amenable number.

469540189 is a deficient number, since it is larger than the sum of its proper divisors (16191071).

469540189 is a wasteful number, since it uses less digits than its factorization.

469540189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16191070.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 469540189 is about 21668.8760437638. The cubic root of 469540189 is about 777.2443793905.

The spelling of 469540189 in words is "four hundred sixty-nine million, five hundred forty thousand, one hundred eighty-nine".