1057722 has 16 divisors (see below), whose sum is σ = 2129760. Its totient is φ = 350192.

The previous prime is 1057703. The next prime is 1057739. The reversal of 1057722 is 2277501.

It is a super-2 number, since 2×1057722² = 2237551658568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057692 and 1057701.

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, 529 + ... + 1547.

It is an arithmetic number, because the mean of its divisors is an integer number (133110).

2^1057722 is an apocalyptic number.

1057722 is an abundant number, since it is smaller than the sum of its proper divisors (1072038).

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

1057722 is a wasteful number, since it uses less digits than its factorization.

1057722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 1057722 is about 1028.4561244895. The cubic root of 1057722 is about 101.8881896682. Note that the first 3 decimals are identical.

The spelling of 1057722 in words is "one million, fifty-seven thousand, seven hundred twenty-two".