2404690809 has 4 divisors (see below), whose sum is σ = 3206254416. Its totient is φ = 1603127204.

The previous prime is 2404690807. The next prime is 2404690811. The reversal of 2404690809 is 9080964042.

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 an interprime number because it is at equal distance from previous prime (2404690807) and next prime (2404690811).

It is a cyclic number.

It is not a de Polignac number, because 2404690809 - 2¹ = 2404690807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2404690807) 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, 400781799 + ... + 400781804.

It is an arithmetic number, because the mean of its divisors is an integer number (801563604).

Almost surely, 2^2404690809 is an apocalyptic number.

It is an amenable number.

2404690809 is a deficient number, since it is larger than the sum of its proper divisors (801563607).

2404690809 is an equidigital number, since it uses as much as digits as its factorization.

2404690809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801563606.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2404690809 is about 49037.6468542282. The cubic root of 2404690809 is about 1339.7376053013.

The spelling of 2404690809 in words is "two billion, four hundred four million, six hundred ninety thousand, eight hundred nine".