2904890449 has 4 divisors (see below), whose sum is σ = 3057779440. Its totient is φ = 2752001460.

The previous prime is 2904890447. The next prime is 2904890479. The reversal of 2904890449 is 9440984092.

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 a cyclic number.

It is not a de Polignac number, because 2904890449 - 2¹ = 2904890447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2904890447) 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, 76444467 + ... + 76444504.

It is an arithmetic number, because the mean of its divisors is an integer number (764444860).

Almost surely, 2^2904890449 is an apocalyptic number.

It is an amenable number.

2904890449 is a deficient number, since it is larger than the sum of its proper divisors (152888991).

2904890449 is a wasteful number, since it uses less digits than its factorization.

2904890449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152888990.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 2904890449 is about 53897.0356234923. The cubic root of 2904890449 is about 1426.8443051571.

The spelling of 2904890449 in words is "two billion, nine hundred four million, eight hundred ninety thousand, four hundred forty-nine".