651230406 has 12 divisors (see below), whose sum is σ = 1410999252. Its totient is φ = 217076796.

The previous prime is 651230383. The next prime is 651230471. The reversal of 651230406 is 604032156.

651230406 is a `hidden beast` number, since 651 + 2 + 3 + 0 + 4 + 0 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 651230406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18089716 + ... + 18089751.

It is an arithmetic number, because the mean of its divisors is an integer number (117583271).

Almost surely, 2^651230406 is an apocalyptic number.

651230406 is an abundant number, since it is smaller than the sum of its proper divisors (759768846).

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

651230406 is a wasteful number, since it uses less digits than its factorization.

651230406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36179475 (or 36179472 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 651230406 is about 25519.2164064651. The cubic root of 651230406 is about 866.7853381547.

The spelling of 651230406 in words is "six hundred fifty-one million, two hundred thirty thousand, four hundred six".