478135452 has 12 divisors (see below), whose sum is σ = 1115649416. Its totient is φ = 159378480.

The previous prime is 478135451. The next prime is 478135543. The reversal of 478135452 is 254531874.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×478135452² = 457227020918488608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 478135452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478135451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19922299 + ... + 19922322.

Almost surely, 2^478135452 is an apocalyptic number.

It is an amenable number.

478135452 is an abundant number, since it is smaller than the sum of its proper divisors (637513964).

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

478135452 is a wasteful number, since it uses less digits than its factorization.

478135452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39844628 (or 39844626 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 478135452 is about 21866.3086047920. The cubic root of 478135452 is about 781.9583989835.

The spelling of 478135452 in words is "four hundred seventy-eight million, one hundred thirty-five thousand, four hundred fifty-two".