11572280 has 32 divisors (see below), whose sum is σ = 26190000. Its totient is φ = 4601856.

The previous prime is 11572271. The next prime is 11572283. The reversal of 11572280 is 8227511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572283) 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, 6971 + ... + 8469.

Almost surely, 2^11572280 is an apocalyptic number.

11572280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11572280 is an abundant number, since it is smaller than the sum of its proper divisors (14617720).

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

11572280 is a wasteful number, since it uses less digits than its factorization.

11572280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11572280 is about 3401.8054030176. The cubic root of 11572280 is about 226.1897797666.

Adding to 11572280 its reverse (8227511), we get a palindrome (19799791).

The spelling of 11572280 in words is "eleven million, five hundred seventy-two thousand, two hundred eighty".