1057240 has 16 divisors (see below), whose sum is σ = 2378880. Its totient is φ = 422880.

The previous prime is 1057237. The next prime is 1057249. The reversal of 1057240 is 427501.

It is a super-2 number, since 2×1057240² = 2235512835200, which contains 22 as substring.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13176 + ... + 13255.

It is an arithmetic number, because the mean of its divisors is an integer number (148680).

2^1057240 is an apocalyptic number.

1057240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057240 is an abundant number, since it is smaller than the sum of its proper divisors (1321640).

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

1057240 is a wasteful number, since it uses less digits than its factorization.

1057240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26442 (or 26438 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1057240 is about 1028.2217659630. The cubic root of 1057240 is about 101.8727106264.

The spelling of 1057240 in words is "one million, fifty-seven thousand, two hundred forty".