628045242 has 16 divisors (see below), whose sum is σ = 1370280672. Its totient is φ = 190316720.

The previous prime is 628045241. The next prime is 628045273. The reversal of 628045242 is 242540826.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (628045241) 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, 4757853 + ... + 4757984.

It is an arithmetic number, because the mean of its divisors is an integer number (85642542).

Almost surely, 2^628045242 is an apocalyptic number.

628045242 is an abundant number, since it is smaller than the sum of its proper divisors (742235430).

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

628045242 is a wasteful number, since it uses less digits than its factorization.

628045242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9515853.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 628045242 is about 25060.8308321971. The cubic root of 628045242 is about 856.3743349593.

The spelling of 628045242 in words is "six hundred twenty-eight million, forty-five thousand, two hundred forty-two".