57630242 has 8 divisors (see below), whose sum is σ = 86559516. Its totient is φ = 28777072.

The previous prime is 57630241. The next prime is 57630247. The reversal of 57630242 is 24203675.

It can be written as a sum of positive squares in 2 ways, for example, as 37100281 + 20529961 = 6091^2 + 4531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (57630241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17093 + ... + 20184.

Almost surely, 2^57630242 is an apocalyptic number.

57630242 is a deficient number, since it is larger than the sum of its proper divisors (28929274).

57630242 is a wasteful number, since it uses less digits than its factorization.

57630242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38052.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 57630242 is about 7591.4584896448. The cubic root of 57630242 is about 386.2633307437.

The spelling of 57630242 in words is "fifty-seven million, six hundred thirty thousand, two hundred forty-two".