628408092 has 48 divisors (see below), whose sum is σ = 1604987552. Its totient is φ = 190183680.

The previous prime is 628408087. The next prime is 628408117. The reversal of 628408092 is 290804826.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 628408092.

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 15 ways as a sum of consecutive naturals, for example, 23503 + ... + 42534.

Almost surely, 2^628408092 is an apocalyptic number.

It is an amenable number.

628408092 is an abundant number, since it is smaller than the sum of its proper divisors (976579460).

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

628408092 is a wasteful number, since it uses less digits than its factorization.

628408092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66118 (or 66116 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 628408092 is about 25068.0691717571. The cubic root of 628408092 is about 856.5392252060.

The spelling of 628408092 in words is "six hundred twenty-eight million, four hundred eight thousand, ninety-two".