1029950409 has 4 divisors (see below), whose sum is σ = 1373267216. Its totient is φ = 686633604.

The previous prime is 1029950407. The next prime is 1029950437. The reversal of 1029950409 is 9040599201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1029950409 - 2¹ = 1029950407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1029950407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171658399 + ... + 171658404.

It is an arithmetic number, because the mean of its divisors is an integer number (343316804).

Almost surely, 2^1029950409 is an apocalyptic number.

It is an amenable number.

1029950409 is a deficient number, since it is larger than the sum of its proper divisors (343316807).

1029950409 is an equidigital number, since it uses as much as digits as its factorization.

1029950409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343316806.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1029950409 is about 32092.8404632560. The cubic root of 1029950409 is about 1009.8854260125.

The spelling of 1029950409 in words is "one billion, twenty-nine million, nine hundred fifty thousand, four hundred nine".