1057909349 has 8 divisors (see below), whose sum is σ = 1237156800. Its totient is φ = 885691296.

The previous prime is 1057909339. The next prime is 1057909351. The reversal of 1057909349 is 9439097501.

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

It is not a de Polignac number, because 1057909349 - 2⁸ = 1057909093 is a prime.

It is a super-2 number, since 2×1057909349² = 2238344381403207602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057909319) 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 7 ways as a sum of consecutive naturals, for example, 1757024 + ... + 1757625.

It is an arithmetic number, because the mean of its divisors is an integer number (154644600).

Almost surely, 2^1057909349 is an apocalyptic number.

It is an amenable number.

1057909349 is a deficient number, since it is larger than the sum of its proper divisors (179247451).

1057909349 is an equidigital number, since it uses as much as digits as its factorization.

1057909349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514699.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 1057909349 is about 32525.5184278437. The cubic root of 1057909349 is about 1018.9420496128.

The spelling of 1057909349 in words is "one billion, fifty-seven million, nine hundred nine thousand, three hundred forty-nine".