1429039209 has 32 divisors (see below), whose sum is σ = 2125139968. Its totient is φ = 848232000.

The previous prime is 1429039189. The next prime is 1429039219. The reversal of 1429039209 is 9029309241.

It is not a de Polignac number, because 1429039209 - 2⁸ = 1429038953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429039219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398394 + ... + 401964.

It is an arithmetic number, because the mean of its divisors is an integer number (66410624).

Almost surely, 2^1429039209 is an apocalyptic number.

It is an amenable number.

1429039209 is a deficient number, since it is larger than the sum of its proper divisors (696100759).

1429039209 is a wasteful number, since it uses less digits than its factorization.

1429039209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1429039209 is about 37802.6349478446. The cubic root of 1429039209 is about 1126.3707955957.

The spelling of 1429039209 in words is "one billion, four hundred twenty-nine million, thirty-nine thousand, two hundred nine".