628040402270 has 16 divisors (see below), whose sum is σ = 1130489464320. Its totient is φ = 251212440864.

The previous prime is 628040402263. The next prime is 628040402273. The reversal of 628040402270 is 72204040826.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 628040402270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628040402273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304739 + ... + 1161441.

It is an arithmetic number, because the mean of its divisors is an integer number (70655591520).

Almost surely, 2^628040402270 is an apocalyptic number.

628040402270 is a deficient number, since it is larger than the sum of its proper divisors (502449062050).

628040402270 is a wasteful number, since it uses less digits than its factorization.

628040402270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930019.

The product of its (nonzero) digits is 43008, while the sum is 35.

The spelling of 628040402270 in words is "six hundred twenty-eight billion, forty million, four hundred two thousand, two hundred seventy".