628888041 has 12 divisors (see below), whose sum is σ = 937697280. Its totient is φ = 405734040.

The previous prime is 628888033. The next prime is 628888121. The reversal of 628888041 is 140888826.

It is a happy number.

628888041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628888041 - 2³ = 628888033 is a prime.

It is a super-2 number, since 2×628888041² = 791000336225635362, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (628888441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1126761 + ... + 1127318.

It is an arithmetic number, because the mean of its divisors is an integer number (78141440).

Almost surely, 2^628888041 is an apocalyptic number.

It is an amenable number.

628888041 is a deficient number, since it is larger than the sum of its proper divisors (308809239).

628888041 is a wasteful number, since it uses less digits than its factorization.

628888041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254116 (or 2254113 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 628888041 is about 25077.6402598012. The cubic root of 628888041 is about 856.7572313795.

The spelling of 628888041 in words is "six hundred twenty-eight million, eight hundred eighty-eight thousand, forty-one".