628493472 has 96 divisors (see below), whose sum is σ = 1838390400. Its totient is φ = 208894464.

The previous prime is 628493471. The next prime is 628493521. The reversal of 628493472 is 274394826.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×628493472² = 790008088693229568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (628493471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378468 + ... + 380124.

It is an arithmetic number, because the mean of its divisors is an integer number (19149900).

Almost surely, 2^628493472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628493472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919195200).

628493472 is an abundant number, since it is smaller than the sum of its proper divisors (1209896928).

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

628493472 is a wasteful number, since it uses less digits than its factorization.

628493472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2101 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 628493472 is about 25069.7720771450. The cubic root of 628493472 is about 856.5780152896.

The spelling of 628493472 in words is "six hundred twenty-eight million, four hundred ninety-three thousand, four hundred seventy-two".