1057258906 has 16 divisors (see below), whose sum is σ = 1785869568. Its totient is φ = 465069600.

The previous prime is 1057258903. The next prime is 1057258919. The reversal of 1057258906 is 6098527501.

It is a super-2 number, since 2×1057258906² = 2235592788632633672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057258903) 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, 774435 + ... + 775798.

It is an arithmetic number, because the mean of its divisors is an integer number (111616848).

Almost surely, 2^1057258906 is an apocalyptic number.

1057258906 is a deficient number, since it is larger than the sum of its proper divisors (728610662).

1057258906 is a wasteful number, since it uses less digits than its factorization.

1057258906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550277.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1057258906 is about 32515.5179260611. The cubic root of 1057258906 is about 1018.7331786601.

The spelling of 1057258906 in words is "one billion, fifty-seven million, two hundred fifty-eight thousand, nine hundred six".