56784426 has 32 divisors (see below), whose sum is σ = 122472000. Its totient is φ = 17493120.

The previous prime is 56784391. The next prime is 56784457. The reversal of 56784426 is 62448765.

56784426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56784426² = 6448942072298952, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401 + ... + 10748.

It is an arithmetic number, because the mean of its divisors is an integer number (3827250).

Almost surely, 2^56784426 is an apocalyptic number.

56784426 is an abundant number, since it is smaller than the sum of its proper divisors (65687574).

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

56784426 is a wasteful number, since it uses less digits than its factorization.

56784426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214.

The product of its digits is 322560, while the sum is 42.

The square root of 56784426 is about 7535.5441741124. The cubic root of 56784426 is about 384.3643324953.

The spelling of 56784426 in words is "fifty-six million, seven hundred eighty-four thousand, four hundred twenty-six".