2990499905 has 16 divisors (see below), whose sum is σ = 3758482944. Its totient is φ = 2279914560.

The previous prime is 2990499899. The next prime is 2990499917. The reversal of 2990499905 is 5099940992.

It is not a de Polignac number, because 2990499905 - 2¹⁴ = 2990483521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16814 + ... + 79143.

It is an arithmetic number, because the mean of its divisors is an integer number (234905184).

Almost surely, 2^2990499905 is an apocalyptic number.

It is an amenable number.

2990499905 is a deficient number, since it is larger than the sum of its proper divisors (767983039).

2990499905 is a wasteful number, since it uses less digits than its factorization.

2990499905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96256.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The square root of 2990499905 is about 54685.4633792199. The cubic root of 2990499905 is about 1440.7255707211.

The spelling of 2990499905 in words is "two billion, nine hundred ninety million, four hundred ninety-nine thousand, nine hundred five".