2990505 has 32 divisors (see below), whose sum is σ = 5760000. Its totient is φ = 1294272.

The previous prime is 2990501. The next prime is 2990513. The reversal of 2990505 is 5050992.

2990505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2990505 - 2² = 2990501 is a prime.

It is a super-3 number, since 3×2990505³ = 80233336617609112875, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2990501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1246 + ... + 2744.

It is an arithmetic number, because the mean of its divisors is an integer number (180000).

2^2990505 is an apocalyptic number.

It is an amenable number.

2990505 is a deficient number, since it is larger than the sum of its proper divisors (2769495).

2990505 is a wasteful number, since it uses less digits than its factorization.

2990505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 2990505 is about 1729.3076649341. The cubic root of 2990505 is about 144.0726388922.

The spelling of 2990505 in words is "two million, nine hundred ninety thousand, five hundred five".