11728570 has 32 divisors (see below), whose sum is σ = 24323328. Its totient is φ = 3988608.

The previous prime is 11728559. The next prime is 11728579. The reversal of 11728570 is 7582711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11728579) 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, 8979 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (760104).

Almost surely, 2^11728570 is an apocalyptic number.

11728570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11728570 is an abundant number, since it is smaller than the sum of its proper divisors (12594758).

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

11728570 is a wasteful number, since it uses less digits than its factorization.

11728570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 11728570 is about 3424.6999868602. The cubic root of 11728570 is about 227.2035021653.

The spelling of 11728570 in words is "eleven million, seven hundred twenty-eight thousand, five hundred seventy".