11429399424 has 64 divisors (see below), whose sum is σ = 31338708480. Its totient is φ = 3686899200.

The previous prime is 11429399413. The next prime is 11429399473. The reversal of 11429399424 is 42499392411.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 468162 + ... + 491969.

It is an arithmetic number, because the mean of its divisors is an integer number (489667320).

Almost surely, 2^11429399424 is an apocalyptic number.

It is an amenable number.

11429399424 is an abundant number, since it is smaller than the sum of its proper divisors (19909309056).

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

11429399424 is an equidigital number, since it uses as much as digits as its factorization.

11429399424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960179 (or 960167 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The spelling of 11429399424 in words is "eleven billion, four hundred twenty-nine million, three hundred ninety-nine thousand, four hundred twenty-four".