478494642 has 8 divisors (see below), whose sum is σ = 956989296. Its totient is φ = 159498212.

The previous prime is 478494589. The next prime is 478494647. The reversal of 478494642 is 246494874.

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

478494642 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 478494591 and 478494600.

It is not an unprimeable number, because it can be changed into a prime (478494647) 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, 39874548 + ... + 39874559.

It is an arithmetic number, because the mean of its divisors is an integer number (119623662).

Almost surely, 2^478494642 is an apocalyptic number.

478494642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478494642 is a wasteful number, since it uses less digits than its factorization.

478494642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79749112.

The product of its digits is 1548288, while the sum is 48.

The square root of 478494642 is about 21874.5203833136. The cubic root of 478494642 is about 782.1541603397.

The spelling of 478494642 in words is "four hundred seventy-eight million, four hundred ninety-four thousand, six hundred forty-two".