56284340 has 72 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 19027008.

The previous prime is 56284337. The next prime is 56284351. The reversal of 56284340 is 4348265.

It is a junction number, because it is equal to n+sod(n) for n = 56284297 and 56284306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77057 + ... + 77783.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 2^56284340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56284340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69713280).

56284340 is an abundant number, since it is smaller than the sum of its proper divisors (83142220).

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

56284340 is a wasteful number, since it uses less digits than its factorization.

56284340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 56284340 is about 7502.2889840368. The cubic root of 56284340 is about 383.2326709011.

The spelling of 56284340 in words is "fifty-six million, two hundred eighty-four thousand, three hundred forty".