67628450 has 18 divisors (see below), whose sum is σ = 125897169. Its totient is φ = 27028120.

The previous prime is 67628437. The next prime is 67628459. The reversal of 67628450 is 5482676.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66275881 + 1352569 = 8141^2 + 1163^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5815.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67628459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57569 + ... + 58731.

Almost surely, 2^67628450 is an apocalyptic number.

67628450 is a deficient number, since it is larger than the sum of its proper divisors (58268719).

67628450 is an equidigital number, since it uses as much as digits as its factorization.

67628450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 67628450 is about 8223.6518651995. The cubic root of 67628450 is about 407.4207506445.

The spelling of 67628450 in words is "sixty-seven million, six hundred twenty-eight thousand, four hundred fifty".