51790740 has 24 divisors (see below), whose sum is σ = 145014240. Its totient is φ = 13810848.

The previous prime is 51790703. The next prime is 51790763. The reversal of 51790740 is 4709715.

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, 431530 + ... + 431649.

It is an arithmetic number, because the mean of its divisors is an integer number (6042260).

Almost surely, 2^51790740 is an apocalyptic number.

It is an amenable number.

51790740 is an abundant number, since it is smaller than the sum of its proper divisors (93223500).

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

51790740 is a wasteful number, since it uses less digits than its factorization.

51790740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863191 (or 863189 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 51790740 is about 7196.5783536345. The cubic root of 51790740 is about 372.7497596802.

The spelling of 51790740 in words is "fifty-one million, seven hundred ninety thousand, seven hundred forty".