2909894120 has 32 divisors (see below), whose sum is σ = 7482585600. Its totient is φ = 997677888.

The previous prime is 2909894077. The next prime is 2909894129. The reversal of 2909894120 is 214989092.

It is a super-2 number, since 2×2909894120² = 16934967579221148800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2909894129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5195960 + ... + 5196519.

It is an arithmetic number, because the mean of its divisors is an integer number (233830800).

Almost surely, 2^2909894120 is an apocalyptic number.

2909894120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2909894120 is an abundant number, since it is smaller than the sum of its proper divisors (4572691480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2909894120 is a wasteful number, since it uses less digits than its factorization.

2909894120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392497 (or 10392493 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 2909894120 is about 53943.4344475767. The cubic root of 2909894120 is about 1427.6630812036.

The spelling of 2909894120 in words is "two billion, nine hundred nine million, eight hundred ninety-four thousand, one hundred twenty".