478725420 has 24 divisors (see below), whose sum is σ = 1340431344. Its totient is φ = 127660096.

The previous prime is 478725419. The next prime is 478725421. The reversal of 478725420 is 24527874.

It is an interprime number because it is at equal distance from previous prime (478725419) and next prime (478725421).

It is not an unprimeable number, because it can be changed into a prime (478725421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3989319 + ... + 3989438.

It is an arithmetic number, because the mean of its divisors is an integer number (55851306).

Almost surely, 2^478725420 is an apocalyptic number.

It is an amenable number.

478725420 is an abundant number, since it is smaller than the sum of its proper divisors (861705924).

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

478725420 is a wasteful number, since it uses less digits than its factorization.

478725420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978769 (or 7978767 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 478725420 is about 21879.7947888000. The cubic root of 478725420 is about 782.2798844654.

The spelling of 478725420 in words is "four hundred seventy-eight million, seven hundred twenty-five thousand, four hundred twenty".