1009449669 has 8 divisors (see below), whose sum is σ = 1350937440. Its totient is φ = 670464176.

The previous prime is 1009449653. The next prime is 1009449673. The reversal of 1009449669 is 9669449001.

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 1009449669 - 2⁴ = 1009449653 is a prime.

It is a super-2 number, since 2×1009449669² = 2037977268488419122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009449629) 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, 624627 + ... + 626240.

It is an arithmetic number, because the mean of its divisors is an integer number (168867180).

Almost surely, 2^1009449669 is an apocalyptic number.

It is an amenable number.

1009449669 is a deficient number, since it is larger than the sum of its proper divisors (341487771).

1009449669 is a wasteful number, since it uses less digits than its factorization.

1009449669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251139.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 1009449669 is about 31771.8376711200. The cubic root of 1009449669 is about 1003.1400196235.

The spelling of 1009449669 in words is "one billion, nine million, four hundred forty-nine thousand, six hundred sixty-nine".