1029970239 has 4 divisors (see below), whose sum is σ = 1373293656. Its totient is φ = 686646824.

The previous prime is 1029970231. The next prime is 1029970243. The reversal of 1029970239 is 9320799201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1029970239 - 2³ = 1029970231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1029970239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029970231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171661704 + ... + 171661709.

It is an arithmetic number, because the mean of its divisors is an integer number (343323414).

Almost surely, 2^1029970239 is an apocalyptic number.

1029970239 is a deficient number, since it is larger than the sum of its proper divisors (343323417).

1029970239 is an equidigital number, since it uses as much as digits as its factorization.

1029970239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343323416.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 1029970239 is about 32093.1494091808. The cubic root of 1029970239 is about 1009.8919071982.

The spelling of 1029970239 in words is "one billion, twenty-nine million, nine hundred seventy thousand, two hundred thirty-nine".