4491386990 has 16 divisors (see below), whose sum is σ = 8088568848. Its totient is φ = 1795649856.

The previous prime is 4491386959. The next prime is 4491387001. The reversal of 4491386990 is 996831944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92087 + ... + 132146.

It is an arithmetic number, because the mean of its divisors is an integer number (505535553).

Almost surely, 2^4491386990 is an apocalyptic number.

4491386990 is a deficient number, since it is larger than the sum of its proper divisors (3597181858).

4491386990 is a wasteful number, since it uses less digits than its factorization.

4491386990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226243.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 4491386990 is about 67017.8109908105. The cubic root of 4491386990 is about 1649.9096357001.

The spelling of 4491386990 in words is "four billion, four hundred ninety-one million, three hundred eighty-six thousand, nine hundred ninety".