51340368 has 20 divisors (see below), whose sum is σ = 132629408. Its totient is φ = 17113440.

The previous prime is 51340327. The next prime is 51340379. The reversal of 51340368 is 86304315.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 534748 + ... + 534843.

Almost surely, 2^51340368 is an apocalyptic number.

It is an amenable number.

51340368 is an abundant number, since it is smaller than the sum of its proper divisors (81289040).

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

51340368 is a wasteful number, since it uses less digits than its factorization.

51340368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069602 (or 1069596 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 51340368 is about 7165.2193267199. The cubic root of 51340368 is about 371.6661358779. Note that the first 3 decimals are identical.

The spelling of 51340368 in words is "fifty-one million, three hundred forty thousand, three hundred sixty-eight".