628133012 has 12 divisors (see below), whose sum is σ = 1183789236. Its totient is φ = 289907520.

The previous prime is 628132991. The next prime is 628133021. The reversal of 628133012 is 210331826.

It can be written as a sum of positive squares in 2 ways, for example, as 73342096 + 554790916 = 8564^2 + 23554^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6039689 + ... + 6039792.

It is an arithmetic number, because the mean of its divisors is an integer number (98649103).

Almost surely, 2^628133012 is an apocalyptic number.

It is an amenable number.

628133012 is a deficient number, since it is larger than the sum of its proper divisors (555656224).

628133012 is a wasteful number, since it uses less digits than its factorization.

628133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12079498 (or 12079496 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 628133012 is about 25062.5819100906. The cubic root of 628133012 is about 856.4142261801.

Adding to 628133012 its reverse (210331826), we get a palindrome (838464838).

It can be divided in two parts, 6281 and 33012, that added together give a palindrome (39293).

The spelling of 628133012 in words is "six hundred twenty-eight million, one hundred thirty-three thousand, twelve".