2009391142 has 8 divisors (see below), whose sum is σ = 3288094632. Its totient is φ = 913359600.

The previous prime is 2009391133. The next prime is 2009391169. The reversal of 2009391142 is 2411939002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45667959 + ... + 45668002.

It is an arithmetic number, because the mean of its divisors is an integer number (411011829).

Almost surely, 2^2009391142 is an apocalyptic number.

2009391142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2009391142 is a deficient number, since it is larger than the sum of its proper divisors (1278703490).

2009391142 is a wasteful number, since it uses less digits than its factorization.

2009391142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91335974.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2009391142 is about 44826.2327437852. The cubic root of 2009391142 is about 1261.8899875889.

The spelling of 2009391142 in words is "two billion, nine million, three hundred ninety-one thousand, one hundred forty-two".