1057998218 has 16 divisors (see below), whose sum is σ = 1594919040. Its totient is φ = 526365216.

The previous prime is 1057998217. The next prime is 1057998259. The reversal of 1057998218 is 8128997501.

It is a super-2 number, since 2×1057998218² = 2238720458582351048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057998211) 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, 461471 + ... + 463757.

It is an arithmetic number, because the mean of its divisors is an integer number (99682440).

Almost surely, 2^1057998218 is an apocalyptic number.

1057998218 is a deficient number, since it is larger than the sum of its proper divisors (536920822).

1057998218 is a wasteful number, since it uses less digits than its factorization.

1057998218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 362880, while the sum is 50.

The square root of 1057998218 is about 32526.8845418678. The cubic root of 1057998218 is about 1018.9705806729.

The spelling of 1057998218 in words is "one billion, fifty-seven million, nine hundred ninety-eight thousand, two hundred eighteen".