11270280 has 64 divisors (see below), whose sum is σ = 38643840. Its totient is φ = 2575872.

The previous prime is 11270263. The next prime is 11270297. The reversal of 11270280 is 8207211.

11270280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11270263) and next prime (11270297).

It is a super-2 number, since 2×11270280² = 254038422556800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5869 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (603810).

Almost surely, 2^11270280 is an apocalyptic number.

11270280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11270280 is an abundant number, since it is smaller than the sum of its proper divisors (27373560).

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

11270280 is a wasteful number, since it uses less digits than its factorization.

11270280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438 (or 13434 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 11270280 is about 3357.1237689427. The cubic root of 11270280 is about 224.2047978203.

Adding to 11270280 its reverse (8207211), we get a palindrome (19477491).

The spelling of 11270280 in words is "eleven million, two hundred seventy thousand, two hundred eighty".