1057442 has 8 divisors (see below), whose sum is σ = 1592832. Its totient is φ = 526500.

The previous prime is 1057421. The next prime is 1057477. The reversal of 1057442 is 2447501.

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

It is a super-2 number, since 2×1057442² = 2236367166728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 1517.

It is an arithmetic number, because the mean of its divisors is an integer number (199104).

2^1057442 is an apocalyptic number.

1057442 is a deficient number, since it is larger than the sum of its proper divisors (535390).

1057442 is a wasteful number, since it uses less digits than its factorization.

1057442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1057442 is about 1028.3199891084. The cubic root of 1057442 is about 101.8791982663.

The spelling of 1057442 in words is "one million, fifty-seven thousand, four hundred forty-two".