609628242 has 16 divisors (see below), whose sum is σ = 1220057280. Its totient is φ = 203075952.

The previous prime is 609628231. The next prime is 609628273. The reversal of 609628242 is 242826906.

It is a self number, because there is not a number n which added to its sum of digits gives 609628242.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23233 + ... + 41940.

It is an arithmetic number, because the mean of its divisors is an integer number (76253580).

Almost surely, 2^609628242 is an apocalyptic number.

609628242 is an abundant number, since it is smaller than the sum of its proper divisors (610429038).

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

609628242 is a wasteful number, since it uses less digits than its factorization.

609628242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66737.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 609628242 is about 24690.6509027202. The cubic root of 609628242 is about 847.9202868363.

The spelling of 609628242 in words is "six hundred nine million, six hundred twenty-eight thousand, two hundred forty-two".