11429720 has 32 divisors (see below), whose sum is σ = 26049600. Its totient is φ = 4512768.

The previous prime is 11429713. The next prime is 11429749. The reversal of 11429720 is 2792411.

It is a self number, because there is not a number n which added to its sum of digits gives 11429720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (814050).

Almost surely, 2^11429720 is an apocalyptic number.

11429720 is a gapful number since it is divisible by the number (10) 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 11429720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13024800).

11429720 is an abundant number, since it is smaller than the sum of its proper divisors (14619880).

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

11429720 is a wasteful number, since it uses less digits than its factorization.

11429720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3703 counting only the distinct ones).

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

The square root of 11429720 is about 3380.7868906513. The cubic root of 11429720 is about 225.2571216967.

The spelling of 11429720 in words is "eleven million, four hundred twenty-nine thousand, seven hundred twenty".