57822440 has 128 divisors (see below), whose sum is σ = 153861120. Its totient is φ = 19353600.

The previous prime is 57822431. The next prime is 57822461. The reversal of 57822440 is 4422875.

57822440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57822397 and 57822406.

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 31 ways as a sum of consecutive naturals, for example, 273935 + ... + 274145.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 2^57822440 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 57822440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76930560).

57822440 is an abundant number, since it is smaller than the sum of its proper divisors (96038680).

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

57822440 is a wasteful number, since it uses less digits than its factorization.

57822440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 57822440 is about 7604.1067851523. The cubic root of 57822440 is about 386.6922528980.

The spelling of 57822440 in words is "fifty-seven million, eight hundred twenty-two thousand, four hundred forty".