1329780242 has 8 divisors (see below), whose sum is σ = 2279623296. Its totient is φ = 569905812.

The previous prime is 1329780233. The next prime is 1329780251. The reversal of 1329780242 is 2420879231.

It is an interprime number because it is at equal distance from previous prime (1329780233) and next prime (1329780251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1329780196 and 1329780205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47492138 + ... + 47492165.

It is an arithmetic number, because the mean of its divisors is an integer number (284952912).

Almost surely, 2^1329780242 is an apocalyptic number.

1329780242 is a deficient number, since it is larger than the sum of its proper divisors (949843054).

1329780242 is an equidigital number, since it uses as much as digits as its factorization.

1329780242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94984312.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1329780242 is about 36466.1520042902. The cubic root of 1329780242 is about 1099.6638758143.

It can be divided in two parts, 13297 and 80242, that added together give a palindrome (93539).

The spelling of 1329780242 in words is "one billion, three hundred twenty-nine million, seven hundred eighty thousand, two hundred forty-two".