11249780 has 24 divisors (see below), whose sum is σ = 24072552. Its totient is φ = 4414592.

The previous prime is 11249759. The next prime is 11249809. The reversal of 11249780 is 8794211.

11249780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5895184 + 5354596 = 2428^2 + 2314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4247 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (1003023).

Almost surely, 2^11249780 is an apocalyptic number.

11249780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11249780 is an abundant number, since it is smaller than the sum of its proper divisors (12822772).

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

11249780 is a wasteful number, since it uses less digits than its factorization.

11249780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11249780 is about 3354.0691704257. The cubic root of 11249780 is about 224.0687767123.

The spelling of 11249780 in words is "eleven million, two hundred forty-nine thousand, seven hundred eighty".