1049491856 has 40 divisors (see below), whose sum is σ = 2398846464. Its totient is φ = 435271680.

The previous prime is 1049491843. The next prime is 1049491867. The reversal of 1049491856 is 6581949401.

It is a super-2 number, since 2×1049491856² = 2202866311620649472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1049491856.

It is an unprimeable number.

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, 147665 + ... + 154608.

Almost surely, 2^1049491856 is an apocalyptic number.

1049491856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1049491856 is an abundant number, since it is smaller than the sum of its proper divisors (1349354608).

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

1049491856 is a wasteful number, since it uses less digits than its factorization.

1049491856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302319 (or 302313 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1049491856 is about 32395.8617110272. The cubic root of 1049491856 is about 1016.2323698154.

The spelling of 1049491856 in words is "one billion, forty-nine million, four hundred ninety-one thousand, eight hundred fifty-six".