469540019 has 4 divisors (see below), whose sum is σ = 505658496. Its totient is φ = 433421544.

The previous prime is 469539979. The next prime is 469540031. The reversal of 469540019 is 910045964.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469540019 is a prime.

It is a super-2 number, since 2×469540019² = 440935658885040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469540079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18059219 + ... + 18059244.

It is an arithmetic number, because the mean of its divisors is an integer number (126414624).

Almost surely, 2^469540019 is an apocalyptic number.

469540019 is a deficient number, since it is larger than the sum of its proper divisors (36118477).

469540019 is a wasteful number, since it uses less digits than its factorization.

469540019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36118476.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 469540019 is about 21668.8721210865. The cubic root of 469540019 is about 777.2442855884.

The spelling of 469540019 in words is "four hundred sixty-nine million, five hundred forty thousand, nineteen".