1057173844 has 6 divisors (see below), whose sum is σ = 1850054234. Its totient is φ = 528586920.

The previous prime is 1057173829. The next prime is 1057173847. The reversal of 1057173844 is 4483717501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 529920400 + 527253444 = 23020^2 + 22962^2 .

It is a super-2 number, since 2×1057173844² = 2235233072875472672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057173797 and 1057173806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057173847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132146727 + ... + 132146734.

Almost surely, 2^1057173844 is an apocalyptic number.

It is an amenable number.

1057173844 is a deficient number, since it is larger than the sum of its proper divisors (792880390).

1057173844 is a wasteful number, since it uses less digits than its factorization.

1057173844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264293465 (or 264293463 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1057173844 is about 32514.2098781440. The cubic root of 1057173844 is about 1018.7058571260.

It can be divided in two parts, 105717 and 3844, that added together give a square (109561 = 331²).

The spelling of 1057173844 in words is "one billion, fifty-seven million, one hundred seventy-three thousand, eight hundred forty-four".