628471488 has 56 divisors (see below), whose sum is σ = 1701523648. Its totient is φ = 204615936.

The previous prime is 628471483. The next prime is 628471489. The reversal of 628471488 is 884174826.

628471488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×628471488² = 789952822457868288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (628471483) 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, 29806 + ... + 46317.

Almost surely, 2^628471488 is an apocalyptic number.

It is an amenable number.

628471488 is an abundant number, since it is smaller than the sum of its proper divisors (1073052160).

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

628471488 is a wasteful number, since it uses less digits than its factorization.

628471488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76181 (or 76171 counting only the distinct ones).

The product of its digits is 688128, while the sum is 48.

The square root of 628471488 is about 25069.3336169911. Note that the first 3 decimals coincide. The cubic root of 628471488 is about 856.5680277923.

The spelling of 628471488 in words is "six hundred twenty-eight million, four hundred seventy-one thousand, four hundred eighty-eight".