628453742 has 16 divisors (see below), whose sum is σ = 1089456480. Its totient is φ = 266310528.

The previous prime is 628453717. The next prime is 628453759. The reversal of 628453742 is 247354826.

It is a self number, because there is not a number n which added to its sum of digits gives 628453742.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 250943 + ... + 253434.

It is an arithmetic number, because the mean of its divisors is an integer number (68091030).

Almost surely, 2^628453742 is an apocalyptic number.

628453742 is a deficient number, since it is larger than the sum of its proper divisors (461002738).

628453742 is a wasteful number, since it uses less digits than its factorization.

628453742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504475.

The product of its digits is 322560, while the sum is 41.

The square root of 628453742 is about 25068.9796760857. The cubic root of 628453742 is about 856.5599654805.

The spelling of 628453742 in words is "six hundred twenty-eight million, four hundred fifty-three thousand, seven hundred forty-two".