478242287 has 8 divisors (see below), whose sum is σ = 484199040. Its totient is φ = 472311000.

The previous prime is 478242251. The next prime is 478242307. The reversal of 478242287 is 782242874.

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 478242287 - 2⁸ = 478242031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478242587) 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, 32912 + ... + 45162.

It is an arithmetic number, because the mean of its divisors is an integer number (60524880).

Almost surely, 2^478242287 is an apocalyptic number.

478242287 is a deficient number, since it is larger than the sum of its proper divisors (5956753).

478242287 is a wasteful number, since it uses less digits than its factorization.

478242287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733.

The product of its digits is 401408, while the sum is 44.

The square root of 478242287 is about 21868.7513818233. The cubic root of 478242287 is about 782.0166351339.

The spelling of 478242287 in words is "four hundred seventy-eight million, two hundred forty-two thousand, two hundred eighty-seven".