11422729 has 8 divisors (see below), whose sum is σ = 11578112. Its totient is φ = 11268720.

The previous prime is 11422721. The next prime is 11422757. The reversal of 11422729 is 92722411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11422729 - 2³ = 11422721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11422697 and 11422706.

It is not an unprimeable number, because it can be changed into a prime (11422721) 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, 40222 + ... + 40504.

It is an arithmetic number, because the mean of its divisors is an integer number (1447264).

Almost surely, 2^11422729 is an apocalyptic number.

It is an amenable number.

11422729 is a deficient number, since it is larger than the sum of its proper divisors (155383).

11422729 is a wasteful number, since it uses less digits than its factorization.

11422729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its digits is 2016, while the sum is 28.

The square root of 11422729 is about 3379.7528016114. The cubic root of 11422729 is about 225.2111860799.

It can be divided in two parts, 11 and 422729, that added together give a triangular number (422740 = T₉₁₉).

The spelling of 11422729 in words is "eleven million, four hundred twenty-two thousand, seven hundred twenty-nine".