1328783429 has 8 divisors (see below), whose sum is σ = 1338664320. Its totient is φ = 1318925776.

The previous prime is 1328783419. The next prime is 1328783441. The reversal of 1328783429 is 9243878231.

It is a happy number.

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 1328783429 - 2¹⁶ = 1328717893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328783419) 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, 118727 + ... + 129435.

It is an arithmetic number, because the mean of its divisors is an integer number (167333040).

Almost surely, 2^1328783429 is an apocalyptic number.

It is an amenable number.

1328783429 is a deficient number, since it is larger than the sum of its proper divisors (9880891).

1328783429 is a wasteful number, since it uses less digits than its factorization.

1328783429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11619.

The product of its digits is 580608, while the sum is 47.

The square root of 1328783429 is about 36452.4817947969. The cubic root of 1328783429 is about 1099.3890350993.

The spelling of 1328783429 in words is "one billion, three hundred twenty-eight million, seven hundred eighty-three thousand, four hundred twenty-nine".