478445512 has 8 divisors (see below), whose sum is σ = 897085350. Its totient is φ = 239222752.

The previous prime is 478445507. The next prime is 478445519. The reversal of 478445512 is 215544874.

It can be written as a sum of positive squares in only one way, i.e., 244171876 + 234273636 = 15626^2 + 15306^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (478445519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29902837 + ... + 29902852.

Almost surely, 2^478445512 is an apocalyptic number.

It is an amenable number.

478445512 is a deficient number, since it is larger than the sum of its proper divisors (418639838).

478445512 is a wasteful number, since it uses less digits than its factorization.

478445512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59805695 (or 59805691 counting only the distinct ones).

The product of its digits is 179200, while the sum is 40.

The square root of 478445512 is about 21873.3973584352. The cubic root of 478445512 is about 782.1273898907.

The spelling of 478445512 in words is "four hundred seventy-eight million, four hundred forty-five thousand, five hundred twelve".