57727242 has 40 divisors (see below), whose sum is σ = 132375936. Its totient is φ = 18792648.

The previous prime is 57727231. The next prime is 57727253. The reversal of 57727242 is 24272775.

It is an interprime number because it is at equal distance from previous prime (57727231) and next prime (57727253).

It is a junction number, because it is equal to n+sod(n) for n = 57727197 and 57727206.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2823 + ... + 11109.

Almost surely, 2^57727242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57727242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66187968).

57727242 is an abundant number, since it is smaller than the sum of its proper divisors (74648694).

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

57727242 is a wasteful number, since it uses less digits than its factorization.

57727242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8344 (or 8335 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 57727242 is about 7597.8445627691. The cubic root of 57727242 is about 386.4799215493.

The spelling of 57727242 in words is "fifty-seven million, seven hundred twenty-seven thousand, two hundred forty-two".