57003840 has 84 divisors (see below), whose sum is σ = 196079364. Its totient is φ = 15200256.

The previous prime is 57003833. The next prime is 57003847. The reversal of 57003840 is 4830075.

57003840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57003833) and next prime (57003847).

It can be written as a sum of positive squares in 2 ways, for example, as 33732864 + 23270976 = 5808^2 + 4824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57003847) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7017 + ... + 12776.

Almost surely, 2^57003840 is an apocalyptic number.

It is an amenable number.

57003840 is an abundant number, since it is smaller than the sum of its proper divisors (139075524).

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

57003840 is a wasteful number, since it uses less digits than its factorization.

57003840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19816 (or 19803 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 57003840 is about 7550.0887412003. The cubic root of 57003840 is about 384.8587551818.

The spelling of 57003840 in words is "fifty-seven million, three thousand, eight hundred forty".