628097740 has 12 divisors (see below), whose sum is σ = 1319005296. Its totient is φ = 251239088.

The previous prime is 628097719. The next prime is 628097749. The reversal of 628097740 is 47790826.

It is not an unprimeable number, because it can be changed into a prime (628097749) 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 3 ways as a sum of consecutive naturals, for example, 15702424 + ... + 15702463.

It is an arithmetic number, because the mean of its divisors is an integer number (109917108).

Almost surely, 2^628097740 is an apocalyptic number.

It is an amenable number.

628097740 is an abundant number, since it is smaller than the sum of its proper divisors (690907556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628097740 is a wasteful number, since it uses less digits than its factorization.

628097740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31404896 (or 31404894 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 628097740 is about 25061.8782217136. The cubic root of 628097740 is about 856.3981956009.

The spelling of 628097740 in words is "six hundred twenty-eight million, ninety-seven thousand, seven hundred forty".