1290880329 has 8 divisors (see below), whose sum is σ = 1822419360. Its totient is φ = 809964096.

The previous prime is 1290880321. The next prime is 1290880337. The reversal of 1290880329 is 9230880921.

It is an interprime number because it is at equal distance from previous prime (1290880321) and next prime (1290880337).

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

It is not a de Polignac number, because 1290880329 - 2³ = 1290880321 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1290880321) 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, 12655639 + ... + 12655740.

It is an arithmetic number, because the mean of its divisors is an integer number (227802420).

Almost surely, 2^1290880329 is an apocalyptic number.

It is an amenable number.

1290880329 is a deficient number, since it is larger than the sum of its proper divisors (531539031).

1290880329 is a wasteful number, since it uses less digits than its factorization.

1290880329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25311399.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1290880329 is about 35928.8230951140. The cubic root of 1290880329 is about 1088.8348037373.

The spelling of 1290880329 in words is "one billion, two hundred ninety million, eight hundred eighty thousand, three hundred twenty-nine".