478252546 has 4 divisors (see below), whose sum is σ = 717378822. Its totient is φ = 239126272.

The previous prime is 478252513. The next prime is 478252559. The reversal of 478252546 is 645252874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 243703321 + 234549225 = 15611^2 + 15315^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119563135 + ... + 119563138.

Almost surely, 2^478252546 is an apocalyptic number.

478252546 is a deficient number, since it is larger than the sum of its proper divisors (239126276).

478252546 is a wasteful number, since it uses less digits than its factorization.

478252546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239126275.

The product of its digits is 537600, while the sum is 43.

The square root of 478252546 is about 21868.9859389959. The cubic root of 478252546 is about 782.0222268960.

The spelling of 478252546 in words is "four hundred seventy-eight million, two hundred fifty-two thousand, five hundred forty-six".