628472272 has 40 divisors (see below), whose sum is σ = 1313040960. Its totient is φ = 290430720.

The previous prime is 628472233. The next prime is 628472279. The reversal of 628472272 is 272274826.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628472279) 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, 12748 + ... + 37675.

It is an arithmetic number, because the mean of its divisors is an integer number (32826024).

Almost surely, 2^628472272 is an apocalyptic number.

It is an amenable number.

628472272 is an abundant number, since it is smaller than the sum of its proper divisors (684568688).

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

628472272 is a wasteful number, since it uses less digits than its factorization.

628472272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50491 (or 50485 counting only the distinct ones).

The product of its digits is 150528, while the sum is 40.

The square root of 628472272 is about 25069.3492536204. The cubic root of 628472272 is about 856.5683839734.

The spelling of 628472272 in words is "six hundred twenty-eight million, four hundred seventy-two thousand, two hundred seventy-two".