1100671280 has 40 divisors (see below), whose sum is σ = 2572356192. Its totient is φ = 437981184.

The previous prime is 1100671267. The next prime is 1100671283. The reversal of 1100671280 is 821760011.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1100671280² = 2422954533233676800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100671283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20204 + ... + 51083.

Almost surely, 2^1100671280 is an apocalyptic number.

1100671280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100671280 is an abundant number, since it is smaller than the sum of its proper divisors (1471684912).

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

1100671280 is a wasteful number, since it uses less digits than its factorization.

1100671280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71493 (or 71487 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 1100671280 is about 33176.3662868615. The cubic root of 1100671280 is about 1032.4900573004.

The spelling of 1100671280 in words is "one billion, one hundred million, six hundred seventy-one thousand, two hundred eighty".