628028742 has 32 divisors (see below), whose sum is σ = 1379462400. Its totient is φ = 189031520.

The previous prime is 628028741. The next prime is 628028743. The reversal of 628028742 is 247820826.

It is an interprime number because it is at equal distance from previous prime (628028741) and next prime (628028743).

It is a self number, because there is not a number n which added to its sum of digits gives 628028742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628028741) 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 15 ways as a sum of consecutive naturals, for example, 22098 + ... + 41765.

It is an arithmetic number, because the mean of its divisors is an integer number (43108200).

Almost surely, 2^628028742 is an apocalyptic number.

628028742 is an abundant number, since it is smaller than the sum of its proper divisors (751433658).

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

628028742 is a wasteful number, since it uses less digits than its factorization.

628028742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64028.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 628028742 is about 25060.5016310528. The cubic root of 628028742 is about 856.3668353402.

The spelling of 628028742 in words is "six hundred twenty-eight million, twenty-eight thousand, seven hundred forty-two".