13429429 has 4 divisors (see below), whose sum is σ = 14462476. Its totient is φ = 12396384.

The previous prime is 13429399. The next prime is 13429433. The reversal of 13429429 is 92492431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 12215025 = 1102^2 + 3495^2 .

It is not a de Polignac number, because 13429429 - 2⁷ = 13429301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13429394 and 13429403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13429469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516504 + ... + 516529.

It is an arithmetic number, because the mean of its divisors is an integer number (3615619).

Almost surely, 2^13429429 is an apocalyptic number.

It is an amenable number.

13429429 is a deficient number, since it is larger than the sum of its proper divisors (1033047).

13429429 is a wasteful number, since it uses less digits than its factorization.

13429429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033046.

The product of its digits is 15552, while the sum is 34.

The square root of 13429429 is about 3664.6185340360. The cubic root of 13429429 is about 237.6945272379.

The spelling of 13429429 in words is "thirteen million, four hundred twenty-nine thousand, four hundred twenty-nine".