51340326 has 16 divisors (see below), whose sum is σ = 102874944. Its totient is φ = 17081064.

The previous prime is 51340319. The next prime is 51340327. The reversal of 51340326 is 62304315.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51340296 and 51340305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4540 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (6429684).

Almost surely, 2^51340326 is an apocalyptic number.

51340326 is an abundant number, since it is smaller than the sum of its proper divisors (51534618).

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

51340326 is a wasteful number, since it uses less digits than its factorization.

51340326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16195.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 51340326 is about 7165.2163958948. The cubic root of 51340326 is about 371.6660345283. Note that the first 3 decimals are identical.

The spelling of 51340326 in words is "fifty-one million, three hundred forty thousand, three hundred twenty-six".