1113407280 has 60 divisors (see below), whose sum is σ = 3739195200. Its totient is φ = 296908416.

The previous prime is 1113407261. The next prime is 1113407291. The reversal of 1113407280 is 827043111.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 772480 + ... + 773919.

It is an arithmetic number, because the mean of its divisors is an integer number (62319920).

Almost surely, 2^1113407280 is an apocalyptic number.

1113407280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113407280 is an abundant number, since it is smaller than the sum of its proper divisors (2625787920).

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

1113407280 is a wasteful number, since it uses less digits than its factorization.

1113407280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546418 (or 1546409 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1113407280 is about 33367.7580907079. The cubic root of 1113407280 is about 1036.4571507994.

The spelling of 1113407280 in words is "one billion, one hundred thirteen million, four hundred seven thousand, two hundred eighty".