11428992 has 64 divisors (see below), whose sum is σ = 33741600. Its totient is φ = 3808512.

The previous prime is 11428969. The next prime is 11428993. The reversal of 11428992 is 29982411.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11428993) 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, 1803 + ... + 5109.

Almost surely, 2^11428992 is an apocalyptic number.

11428992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11428992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16870800).

11428992 is an abundant number, since it is smaller than the sum of its proper divisors (22312608).

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

11428992 is an equidigital number, since it uses as much as digits as its factorization.

11428992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3312 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11428992 is about 3380.6792216950. The cubic root of 11428992 is about 225.2523391163.

The spelling of 11428992 in words is "eleven million, four hundred twenty-eight thousand, nine hundred ninety-two".