11387272 has 32 divisors (see below), whose sum is σ = 23143680. Its totient is φ = 5221440.

The previous prime is 11387269. The next prime is 11387273. The reversal of 11387272 is 27278311.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11387273) 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, 22947 + ... + 23437.

It is an arithmetic number, because the mean of its divisors is an integer number (723240).

Almost surely, 2^11387272 is an apocalyptic number.

It is an amenable number.

11387272 is an abundant number, since it is smaller than the sum of its proper divisors (11756408).

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

11387272 is a wasteful number, since it uses less digits than its factorization.

11387272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 11387272 is about 3374.5032226981. The cubic root of 11387272 is about 224.9779204671.

The spelling of 11387272 in words is "eleven million, three hundred eighty-seven thousand, two hundred seventy-two".