651028630 has 16 divisors (see below), whose sum is σ = 1339259040. Its totient is φ = 223209792.

The previous prime is 651028621. The next prime is 651028663. The reversal of 651028630 is 36820156.

It is a junction number, because it is equal to n+sod(n) for n = 651028592 and 651028601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650135 + ... + 4650274.

It is an arithmetic number, because the mean of its divisors is an integer number (83703690).

Almost surely, 2^651028630 is an apocalyptic number.

651028630 is an abundant number, since it is smaller than the sum of its proper divisors (688230410).

651028630 is a wasteful number, since it uses less digits than its factorization.

651028630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300423.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 651028630 is about 25515.2626872623. The cubic root of 651028630 is about 866.6958078630.

Adding to 651028630 its reverse (36820156), we get a palindrome (687848786).

The spelling of 651028630 in words is "six hundred fifty-one million, twenty-eight thousand, six hundred thirty".