470020728 has 32 divisors (see below), whose sum is σ = 1176993360. Its totient is φ = 156414720.

The previous prime is 470020723. The next prime is 470020757. The reversal of 470020728 is 827020074.

It is a junction number, because it is equal to n+sod(n) for n = 470020695 and 470020704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470020723) 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, 1063 + ... + 30678.

Almost surely, 2^470020728 is an apocalyptic number.

It is an amenable number.

470020728 is an abundant number, since it is smaller than the sum of its proper divisors (706972632).

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

470020728 is a wasteful number, since it uses less digits than its factorization.

470020728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32367 (or 32363 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 470020728 is about 21679.9614390801. The cubic root of 470020728 is about 777.5094393384.

The spelling of 470020728 in words is "four hundred seventy million, twenty thousand, seven hundred twenty-eight".