628769282 has 8 divisors (see below), whose sum is σ = 944432400. Its totient is φ = 313958484.

The previous prime is 628769269. The next prime is 628769287. The reversal of 628769282 is 282967826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×628769282³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628769282.

It is not an unprimeable number, because it can be changed into a prime (628769287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 211232 + ... + 214187.

It is an arithmetic number, because the mean of its divisors is an integer number (118054050).

Almost surely, 2^628769282 is an apocalyptic number.

628769282 is a deficient number, since it is larger than the sum of its proper divisors (315663118).

628769282 is a wasteful number, since it uses less digits than its factorization.

628769282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426160.

The product of its digits is 1161216, while the sum is 50.

The square root of 628769282 is about 25075.2723215522. The cubic root of 628769282 is about 856.7032980714.

The spelling of 628769282 in words is "six hundred twenty-eight million, seven hundred sixty-nine thousand, two hundred eighty-two".