478507538 has 8 divisors (see below), whose sum is σ = 717882480. Its totient is φ = 239213380.

The previous prime is 478507489. The next prime is 478507541. The reversal of 478507538 is 835705874.

It is a happy number.

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

It is a super-3 number, since 3×478507538³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478507492 and 478507501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168 + ... + 31011.

It is an arithmetic number, because the mean of its divisors is an integer number (89735310).

Almost surely, 2^478507538 is an apocalyptic number.

478507538 is a deficient number, since it is larger than the sum of its proper divisors (239374942).

478507538 is a wasteful number, since it uses less digits than its factorization.

478507538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40392.

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 478507538 is about 21874.8151535047. The cubic root of 478507538 is about 782.1611869383.

The spelling of 478507538 in words is "four hundred seventy-eight million, five hundred seven thousand, five hundred thirty-eight".