57620340 has 36 divisors (see below), whose sum is σ = 174782244. Its totient is φ = 15365376.

The previous prime is 57620317. The next prime is 57620357. The reversal of 57620340 is 4302675.

It is a happy number.

57620340 is a `hidden beast` number, since 5 + 7 + 620 + 34 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16941456 + 40678884 = 4116^2 + 6378^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159877 + ... + 160236.

Almost surely, 2^57620340 is an apocalyptic number.

It is an amenable number.

57620340 is an abundant number, since it is smaller than the sum of its proper divisors (117161904).

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

57620340 is a wasteful number, since it uses less digits than its factorization.

57620340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320128 (or 320123 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 57620340 is about 7590.8062812853. The cubic root of 57620340 is about 386.2412069510.

The spelling of 57620340 in words is "fifty-seven million, six hundred twenty thousand, three hundred forty".