1429711321 has 4 divisors (see below), whose sum is σ = 1436896000. Its totient is φ = 1422526644.

The previous prime is 1429711301. The next prime is 1429711333. The reversal of 1429711321 is 1231179241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1429711321 - 2¹¹ = 1429709273 is a prime.

It is a super-2 number, since 2×1429711321² = 4088148922791130082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429711301) 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, 3592041 + ... + 3592438.

It is an arithmetic number, because the mean of its divisors is an integer number (359224000).

Almost surely, 2^1429711321 is an apocalyptic number.

It is an amenable number.

1429711321 is a deficient number, since it is larger than the sum of its proper divisors (7184679).

1429711321 is an equidigital number, since it uses as much as digits as its factorization.

1429711321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7184678.

The product of its digits is 3024, while the sum is 31.

The square root of 1429711321 is about 37811.5236535107. The cubic root of 1429711321 is about 1126.5473544725.

The spelling of 1429711321 in words is "one billion, four hundred twenty-nine million, seven hundred eleven thousand, three hundred twenty-one".