57042422 has 8 divisors (see below), whose sum is σ = 85632096. Its totient is φ = 28498392.

The previous prime is 57042421. The next prime is 57042437. The reversal of 57042422 is 22424075.

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

It is a junction number, because it is equal to n+sod(n) for n = 57042391 and 57042400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57042421) 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, 8093 + ... + 13400.

It is an arithmetic number, because the mean of its divisors is an integer number (10704012).

Almost surely, 2^57042422 is an apocalyptic number.

57042422 is a deficient number, since it is larger than the sum of its proper divisors (28589674).

57042422 is a wasteful number, since it uses less digits than its factorization.

57042422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22822.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 57042422 is about 7552.6433783146. The cubic root of 57042422 is about 384.9455637883.

Adding to 57042422 its reverse (22424075), we get a palindrome (79466497).

The spelling of 57042422 in words is "fifty-seven million, forty-two thousand, four hundred twenty-two".