1049649858 has 12 divisors (see below), whose sum is σ = 2274241398. Its totient is φ = 349883280.

The previous prime is 1049649841. The next prime is 1049649899. The reversal of 1049649858 is 8589469401.

1049649858 is a `hidden beast` number, since 10 + 4 + 96 + 498 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 986399649 + 63250209 = 31407^2 + 7953^2 .

It is a super-2 number, since 2×1049649858² = 2203529648798840328, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29156923 + ... + 29156958.

Almost surely, 2^1049649858 is an apocalyptic number.

1049649858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1049649858 is an abundant number, since it is smaller than the sum of its proper divisors (1224591540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1049649858 is a wasteful number, since it uses less digits than its factorization.

1049649858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58313889 (or 58313886 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1049649858 is about 32398.3002331912. The cubic root of 1049649858 is about 1016.2833655072.

The spelling of 1049649858 in words is "one billion, forty-nine million, six hundred forty-nine thousand, eight hundred fifty-eight".