1057040 has 40 divisors (see below), whose sum is σ = 2505048. Its totient is φ = 414720.

The previous prime is 1057037. The next prime is 1057051. The reversal of 1057040 is 407501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 1056784 = 16^2 + 1028^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1057040² = 2234667123200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5750 + ... + 5930.

2^1057040 is an apocalyptic number.

1057040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1057040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252524).

1057040 is an abundant number, since it is smaller than the sum of its proper divisors (1448008).

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

1057040 is a wasteful number, since it uses less digits than its factorization.

1057040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1057040 is about 1028.1245060789. The cubic root of 1057040 is about 101.8662864064.

The spelling of 1057040 in words is "one million, fifty-seven thousand, forty".