1057396186 has 24 divisors (see below), whose sum is σ = 2012782176. Its totient is φ = 411972120.

The previous prime is 1057396183. The next prime is 1057396199. The reversal of 1057396186 is 6816937501.

It is a happy number.

It is a super-2 number, since 2×1057396186² = 2236173388334693192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057396183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489366 + ... + 491521.

It is an arithmetic number, because the mean of its divisors is an integer number (83865924).

Almost surely, 2^1057396186 is an apocalyptic number.

1057396186 is a deficient number, since it is larger than the sum of its proper divisors (955385990).

1057396186 is a wasteful number, since it uses less digits than its factorization.

1057396186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980914 (or 980907 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1057396186 is about 32517.6288495948. The cubic root of 1057396186 is about 1018.7772692915. Note that the first 3 decimals are identical.

The spelling of 1057396186 in words is "one billion, fifty-seven million, three hundred ninety-six thousand, one hundred eighty-six".