478042513 has 8 divisors (see below), whose sum is σ = 515395328. Its totient is φ = 440772624.

The previous prime is 478042501. The next prime is 478042517. The reversal of 478042513 is 315240874.

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-478042513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478042517) 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, 8481 + ... + 32062.

It is an arithmetic number, because the mean of its divisors is an integer number (64424416).

Almost surely, 2^478042513 is an apocalyptic number.

It is an amenable number.

478042513 is a deficient number, since it is larger than the sum of its proper divisors (37352815).

478042513 is a wasteful number, since it uses less digits than its factorization.

478042513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41463.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 478042513 is about 21864.1833371384. The cubic root of 478042513 is about 781.9077305376.

The spelling of 478042513 in words is "four hundred seventy-eight million, forty-two thousand, five hundred thirteen".