1009990429 has 8 divisors (see below), whose sum is σ = 1215026240. Its totient is φ = 820142496.

The previous prime is 1009990427. The next prime is 1009990463. The reversal of 1009990429 is 9240999001.

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 1009990429 - 2¹ = 1009990427 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 (1009990427) 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 7 ways as a sum of consecutive naturals, for example, 3796824 + ... + 3797089.

It is an arithmetic number, because the mean of its divisors is an integer number (151878280).

Almost surely, 2^1009990429 is an apocalyptic number.

1009990429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1009990429 is a deficient number, since it is larger than the sum of its proper divisors (205035811).

1009990429 is an equidigital number, since it uses as much as digits as its factorization.

1009990429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593939.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 1009990429 is about 31780.3465840132. The cubic root of 1009990429 is about 1003.3191142920.

The spelling of 1009990429 in words is "one billion, nine million, nine hundred ninety thousand, four hundred twenty-nine".