1299429 has 32 divisors (see below), whose sum is σ = 2160000. Its totient is φ = 767232.

The previous prime is 1299379. The next prime is 1299437. The reversal of 1299429 is 9249921.

It is not a de Polignac number, because 1299429 - 2⁸ = 1299173 is a prime.

It is a Curzon number.

1299429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1299393 and 1299402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299439) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8647 + ... + 8795.

It is an arithmetic number, because the mean of its divisors is an integer number (67500).

2^1299429 is an apocalyptic number.

1299429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1299429 is a deficient number, since it is larger than the sum of its proper divisors (860571).

1299429 is a wasteful number, since it uses less digits than its factorization.

1299429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 188 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1299429 is about 1139.9249975327. The cubic root of 1299429 is about 109.1233068548.

It can be divided in two parts, 1299 and 429, that added together give a cube (1728 = 12³).

The spelling of 1299429 in words is "one million, two hundred ninety-nine thousand, four hundred twenty-nine".