628486920240 has 160 divisors (see below), whose sum is σ = 2051201452800. Its totient is φ = 158748595200.

The previous prime is 628486920239. The next prime is 628486920247. The reversal of 628486920240 is 42029684826.

It is not an unprimeable number, because it can be changed into a prime (628486920247) 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 31 ways as a sum of consecutive naturals, for example, 53350671 + ... + 53362449.

It is an arithmetic number, because the mean of its divisors is an integer number (12820009080).

Almost surely, 2^628486920240 is an apocalyptic number.

628486920240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628486920240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025600726400).

628486920240 is an abundant number, since it is smaller than the sum of its proper divisors (1422714532560).

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

628486920240 is a wasteful number, since it uses less digits than its factorization.

628486920240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23515 (or 23509 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 628486920240 in words is "six hundred twenty-eight billion, four hundred eighty-six million, nine hundred twenty thousand, two hundred forty".