1057842 has 24 divisors (see below), whose sum is σ = 2427516. Its totient is φ = 331776.

The previous prime is 1057831. The next prime is 1057853. The reversal of 1057842 is 2487501.

It is an interprime number because it is at equal distance from previous prime (1057831) and next prime (1057853).

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 35721 = 1011^2 + 189^2 .

It is a super-2 number, since 2×1057842² = 2238059393928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423 + ... + 2034.

2^1057842 is an apocalyptic number.

1057842 is an abundant number, since it is smaller than the sum of its proper divisors (1369674).

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

1057842 is a wasteful number, since it uses less digits than its factorization.

1057842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1057842 is about 1028.5144627082. The cubic root of 1057842 is about 101.8920426404.

The spelling of 1057842 in words is "one million, fifty-seven thousand, eight hundred forty-two".