1057035730 has 8 divisors (see below), whose sum is σ = 1902664332. Its totient is φ = 422814288.

The previous prime is 1057035677. The next prime is 1057035779. The reversal of 1057035730 is 375307501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1014486201 + 42549529 = 31851^2 + 6523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1057035730² = 2234649068993265800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057035692 and 1057035701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52851777 + ... + 52851796.

Almost surely, 2^1057035730 is an apocalyptic number.

1057035730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1057035730 is a deficient number, since it is larger than the sum of its proper divisors (845628602).

1057035730 is a wasteful number, since it uses less digits than its factorization.

1057035730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105703580.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 1057035730 is about 32512.0859066286. The cubic root of 1057035730 is about 1018.6614924049.

The spelling of 1057035730 in words is "one billion, fifty-seven million, thirty-five thousand, seven hundred thirty".