11284780 has 24 divisors (see below), whose sum is σ = 25521552. Its totient is φ = 4166592.

The previous prime is 11284769. The next prime is 11284781. The reversal of 11284780 is 8748211.

It is not an unprimeable number, because it can be changed into a prime (11284781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21442 + ... + 21961.

It is an arithmetic number, because the mean of its divisors is an integer number (1063398).

Almost surely, 2^11284780 is an apocalyptic number.

11284780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11284780 is an abundant number, since it is smaller than the sum of its proper divisors (14236772).

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

11284780 is a wasteful number, since it uses less digits than its factorization.

11284780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43425 (or 43423 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 11284780 is about 3359.2826615217. The cubic root of 11284780 is about 224.3009083092.

The spelling of 11284780 in words is "eleven million, two hundred eighty-four thousand, seven hundred eighty".