2890640228 has 48 divisors (see below), whose sum is σ = 5900678784. Its totient is φ = 1213470720.

The previous prime is 2890640227. The next prime is 2890640243. The reversal of 2890640228 is 8220460982.

2890640228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2890640227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335300 + ... + 343812.

It is an arithmetic number, because the mean of its divisors is an integer number (122930808).

Almost surely, 2^2890640228 is an apocalyptic number.

2890640228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2890640228 is an abundant number, since it is smaller than the sum of its proper divisors (3010038556).

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

2890640228 is a wasteful number, since it uses less digits than its factorization.

2890640228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772 (or 8770 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 2890640228 is about 53764.6745363533. The cubic root of 2890640228 is about 1424.5073052831.

The spelling of 2890640228 in words is "two billion, eight hundred ninety million, six hundred forty thousand, two hundred twenty-eight".