478404361 has 4 divisors (see below), whose sum is σ = 506545812. Its totient is φ = 450262912.

The previous prime is 478404349. The next prime is 478404373. The reversal of 478404361 is 163404874.

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

It is an interprime number because it is at equal distance from previous prime (478404349) and next prime (478404373).

It can be written as a sum of positive squares in 2 ways, for example, as 276224400 + 202179961 = 16620^2 + 14219^2 .

It is a cyclic number.

It is not a de Polignac number, because 478404361 - 2¹¹ = 478402313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478404361.

It is not an unprimeable number, because it can be changed into a prime (478404331) 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, 14070700 + ... + 14070733.

It is an arithmetic number, because the mean of its divisors is an integer number (126636453).

Almost surely, 2^478404361 is an apocalyptic number.

It is an amenable number.

478404361 is a deficient number, since it is larger than the sum of its proper divisors (28141451).

478404361 is a wasteful number, since it uses less digits than its factorization.

478404361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28141450.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 478404361 is about 21872.4566750057. The cubic root of 478404361 is about 782.1049657092.

The spelling of 478404361 in words is "four hundred seventy-eight million, four hundred four thousand, three hundred sixty-one".