51414940 has 24 divisors (see below), whose sum is σ = 108429552. Its totient is φ = 20478720.

The previous prime is 51414911. The next prime is 51414977. The reversal of 51414940 is 4941415.

It is a junction number, because it is equal to n+sod(n) for n = 51414899 and 51414908.

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 7 ways as a sum of consecutive naturals, for example, 514 + ... + 10153.

It is an arithmetic number, because the mean of its divisors is an integer number (4517898).

Almost surely, 2^51414940 is an apocalyptic number.

It is an amenable number.

51414940 is an abundant number, since it is smaller than the sum of its proper divisors (57014612).

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

51414940 is a wasteful number, since it uses less digits than its factorization.

51414940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917 (or 10915 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51414940 is about 7170.4211870712. The cubic root of 51414940 is about 371.8459974557.

The spelling of 51414940 in words is "fifty-one million, four hundred fourteen thousand, nine hundred forty".