2009943499 has 8 divisors (see below), whose sum is σ = 2036059760. Its totient is φ = 1983937536.

The previous prime is 2009943491. The next prime is 2009943503. The reversal of 2009943499 is 9943499002.

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 2009943499 - 2³ = 2009943491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009943491) 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, 9427 + ... + 64099.

It is an arithmetic number, because the mean of its divisors is an integer number (254507470).

Almost surely, 2^2009943499 is an apocalyptic number.

2009943499 is a deficient number, since it is larger than the sum of its proper divisors (26116261).

2009943499 is an equidigital number, since it uses as much as digits as its factorization.

2009943499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55149.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 2009943499 is about 44832.3934114609. The cubic root of 2009943499 is about 1262.0056030268.

The spelling of 2009943499 in words is "two billion, nine million, nine hundred forty-three thousand, four hundred ninety-nine".