628940326 has 8 divisors (see below), whose sum is σ = 1078183440. Its totient is φ = 269545848.

The previous prime is 628940321. The next prime is 628940327. The reversal of 628940326 is 623049826.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628940321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22462141 + ... + 22462168.

It is an arithmetic number, because the mean of its divisors is an integer number (134772930).

Almost surely, 2^628940326 is an apocalyptic number.

628940326 is a deficient number, since it is larger than the sum of its proper divisors (449243114).

628940326 is a wasteful number, since it uses less digits than its factorization.

628940326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44924318.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 628940326 is about 25078.6827006524. The cubic root of 628940326 is about 856.7809739789.

The spelling of 628940326 in words is "six hundred twenty-eight million, nine hundred forty thousand, three hundred twenty-six".