1057458909 has 8 divisors (see below), whose sum is σ = 1518402592. Its totient is φ = 650743920.

The previous prime is 1057458901. The next prime is 1057458911. The reversal of 1057458909 is 9098547501.

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

It is not a de Polignac number, because 1057458909 - 2³ = 1057458901 is a prime.

It is a super-2 number, since 2×1057458909² = 2236438688446940562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057458901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13557127 + ... + 13557204.

It is an arithmetic number, because the mean of its divisors is an integer number (189800324).

Almost surely, 2^1057458909 is an apocalyptic number.

It is an amenable number.

1057458909 is a deficient number, since it is larger than the sum of its proper divisors (460943683).

1057458909 is a wasteful number, since it uses less digits than its factorization.

1057458909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27114347.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 1057458909 is about 32518.5932813829. The cubic root of 1057458909 is about 1018.7974129564.

The spelling of 1057458909 in words is "one billion, fifty-seven million, four hundred fifty-eight thousand, nine hundred nine".