478134449 has 8 divisors (see below), whose sum is σ = 542015040. Its totient is φ = 418125456.

The previous prime is 478134439. The next prime is 478134457. The reversal of 478134449 is 944431874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478134449 is a prime.

It is a super-2 number, since 2×478134449² = 457225102641067202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478134439) 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, 967637 + ... + 968130.

It is an arithmetic number, because the mean of its divisors is an integer number (67751880).

Almost surely, 2^478134449 is an apocalyptic number.

It is an amenable number.

478134449 is a deficient number, since it is larger than the sum of its proper divisors (63880591).

478134449 is a wasteful number, since it uses less digits than its factorization.

478134449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935799.

The product of its digits is 387072, while the sum is 44.

The square root of 478134449 is about 21866.2856699532. The cubic root of 478134449 is about 781.9578522034.

The spelling of 478134449 in words is "four hundred seventy-eight million, one hundred thirty-four thousand, four hundred forty-nine".