628183049 has 8 divisors (see below), whose sum is σ = 676708872. Its totient is φ = 579686400.

The previous prime is 628183043. The next prime is 628183067. The reversal of 628183049 is 940381826.

It can be written as a sum of positive squares in 4 ways, for example, as 9765625 + 618417424 = 3125^2 + 24868^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628183049 - 2¹² = 628178953 is a prime.

It is a super-2 number, since 2×628183049² = 789227886101872802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628182997 and 628183015.

It is not an unprimeable number, because it can be changed into a prime (628183043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61577 + ... + 71049.

It is an arithmetic number, because the mean of its divisors is an integer number (84588609).

Almost surely, 2^628183049 is an apocalyptic number.

It is an amenable number.

628183049 is a deficient number, since it is larger than the sum of its proper divisors (48525823).

628183049 is a wasteful number, since it uses less digits than its factorization.

628183049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14587.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 628183049 is about 25063.5801313380. The cubic root of 628183049 is about 856.4369661943.

The spelling of 628183049 in words is "six hundred twenty-eight million, one hundred eighty-three thousand, forty-nine".