2921189090 has 16 divisors (see below), whose sum is σ = 5380423488. Its totient is φ = 1141301616.

The previous prime is 2921189071. The next prime is 2921189147. The reversal of 2921189090 is 909811292.

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, 3396302 + ... + 3397161.

It is an arithmetic number, because the mean of its divisors is an integer number (336276468).

Almost surely, 2^2921189090 is an apocalyptic number.

2921189090 is a deficient number, since it is larger than the sum of its proper divisors (2459234398).

2921189090 is a wasteful number, since it uses less digits than its factorization.

2921189090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793513.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 2921189090 is about 54048.0257733805. The cubic root of 2921189090 is about 1429.5078897418.

The spelling of 2921189090 in words is "two billion, nine hundred twenty-one million, one hundred eighty-nine thousand, ninety".