11249720 has 16 divisors (see below), whose sum is σ = 25311960. Its totient is φ = 4499872.

The previous prime is 11249717. The next prime is 11249723. The reversal of 11249720 is 2794211.

It is an interprime number because it is at equal distance from previous prime (11249717) and next prime (11249723).

It is a self number, because there is not a number n which added to its sum of digits gives 11249720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11249723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140582 + ... + 140661.

Almost surely, 2^11249720 is an apocalyptic number.

11249720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11249720 is an abundant number, since it is smaller than the sum of its proper divisors (14062240).

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

11249720 is a wasteful number, since it uses less digits than its factorization.

11249720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281254 (or 281250 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11249720 is about 3354.0602260544. The cubic root of 11249720 is about 224.0683783594.

The spelling of 11249720 in words is "eleven million, two hundred forty-nine thousand, seven hundred twenty".