1049267840 has 32 divisors (see below), whose sum is σ = 2508407460. Its totient is φ = 419706880.

The previous prime is 1049267803. The next prime is 1049267861. The reversal of 1049267840 is 487629401.

It can be written as a sum of positive squares in 2 ways, for example, as 1007173696 + 42094144 = 31736^2 + 6488^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1049267840² = 2201926000116531200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 819101 + ... + 820380.

Almost surely, 2^1049267840 is an apocalyptic number.

1049267840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049267840 is an abundant number, since it is smaller than the sum of its proper divisors (1459139620).

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

1049267840 is an equidigital number, since it uses as much as digits as its factorization.

1049267840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639500 (or 1639488 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1049267840 is about 32392.4040478628. The cubic root of 1049267840 is about 1016.1600591034.

The spelling of 1049267840 in words is "one billion, forty-nine million, two hundred sixty-seven thousand, eight hundred forty".