11272380 has 48 divisors (see below), whose sum is σ = 36072960. Its totient is φ = 2576448.

The previous prime is 11272379. The next prime is 11272381. The reversal of 11272380 is 8327211.

11272380 = T₁₃₂ + T₁₃₃ + ... + T₄₁₁.

It is an interprime number because it is at equal distance from previous prime (11272379) and next prime (11272381).

It is a self number, because there is not a number n which added to its sum of digits gives 11272380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13000 + ... + 13839.

It is an arithmetic number, because the mean of its divisors is an integer number (751520).

Almost surely, 2^11272380 is an apocalyptic number.

11272380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11272380 is an abundant number, since it is smaller than the sum of its proper divisors (24800580).

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

11272380 is a wasteful number, since it uses less digits than its factorization.

11272380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26858 (or 26856 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 11272380 is about 3357.4365221103. The cubic root of 11272380 is about 224.2187223733.

Adding to 11272380 its reverse (8327211), we get a palindrome (19599591).

The spelling of 11272380 in words is "eleven million, two hundred seventy-two thousand, three hundred eighty".