11690280 has 96 divisors (see below), whose sum is σ = 43430400. Its totient is φ = 2671488.

The previous prime is 11690257. The next prime is 11690321. The reversal of 11690280 is 8209611.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (452400).

Almost surely, 2^11690280 is an apocalyptic number.

11690280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11690280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21715200).

11690280 is an abundant number, since it is smaller than the sum of its proper divisors (31740120).

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

11690280 is a wasteful number, since it uses less digits than its factorization.

11690280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11690280 is about 3419.1051460872. The cubic root of 11690280 is about 226.9559838842.

Adding to 11690280 its reverse (8209611), we get a palindrome (19899891).

The spelling of 11690280 in words is "eleven million, six hundred ninety thousand, two hundred eighty".