478270145 has 8 divisors (see below), whose sum is σ = 584753256. Its totient is φ = 375396736.

The previous prime is 478270141. The next prime is 478270193. The reversal of 478270145 is 541072874.

It can be written as a sum of positive squares in 4 ways, for example, as 187772209 + 290497936 = 13703^2 + 17044^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478270145 - 2² = 478270141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478270099 and 478270108.

It is not an unprimeable number, because it can be changed into a prime (478270141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902132 + ... + 902661.

It is an arithmetic number, because the mean of its divisors is an integer number (73094157).

Almost surely, 2^478270145 is an apocalyptic number.

It is an amenable number.

478270145 is a deficient number, since it is larger than the sum of its proper divisors (106483111).

478270145 is a wasteful number, since it uses less digits than its factorization.

478270145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804851.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 478270145 is about 21869.3883087754. The cubic root of 478270145 is about 782.0318192062.

The spelling of 478270145 in words is "four hundred seventy-eight million, two hundred seventy thousand, one hundred forty-five".