815478474 has 32 divisors (see below), whose sum is σ = 1750567680. Its totient is φ = 252329472.

The previous prime is 815478473. The next prime is 815478481. The reversal of 815478474 is 474874518.

815478474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (815478473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47314 + ... + 62205.

It is an arithmetic number, because the mean of its divisors is an integer number (54705240).

Almost surely, 2^815478474 is an apocalyptic number.

815478474 is an abundant number, since it is smaller than the sum of its proper divisors (935089206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

815478474 is a wasteful number, since it uses less digits than its factorization.

815478474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109614.

The product of its digits is 1003520, while the sum is 48.

The square root of 815478474 is about 28556.5837242482. The cubic root of 815478474 is about 934.2666231037.

The spelling of 815478474 in words is "eight hundred fifteen million, four hundred seventy-eight thousand, four hundred seventy-four".