474180809 has 4 divisors (see below), whose sum is σ = 474327504. Its totient is φ = 474034116.

The previous prime is 474180797. The next prime is 474180821. The reversal of 474180809 is 908081474.

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 an interprime number because it is at equal distance from previous prime (474180797) and next prime (474180821).

It is a cyclic number.

It is not a de Polignac number, because 474180809 - 2²⁴ = 457403593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (474180829) 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, 68387 + ... + 75000.

It is an arithmetic number, because the mean of its divisors is an integer number (118581876).

Almost surely, 2^474180809 is an apocalyptic number.

It is an amenable number.

474180809 is a deficient number, since it is larger than the sum of its proper divisors (146695).

474180809 is a wasteful number, since it uses less digits than its factorization.

474180809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146694.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 474180809 is about 21775.6930773741. The cubic root of 474180809 is about 779.7965769105.

The spelling of 474180809 in words is "four hundred seventy-four million, one hundred eighty thousand, eight hundred nine".