2906389122 has 128 divisors (see below), whose sum is σ = 7602190848. Its totient is φ = 718848000.

The previous prime is 2906389121. The next prime is 2906389133. The reversal of 2906389122 is 2219836092.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2906389121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4835622 + ... + 4836222.

It is an arithmetic number, because the mean of its divisors is an integer number (59392116).

Almost surely, 2^2906389122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2906389122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3801095424).

2906389122 is an abundant number, since it is smaller than the sum of its proper divisors (4695801726).

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

2906389122 is a wasteful number, since it uses less digits than its factorization.

2906389122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2906389122 is about 53910.9369423311. The cubic root of 2906389122 is about 1427.0896391825.

The spelling of 2906389122 in words is "two billion, nine hundred six million, three hundred eighty-nine thousand, one hundred twenty-two".