2228040288 has 72 divisors (see below), whose sum is σ = 6455580768. Its totient is φ = 728662272.

The previous prime is 2228040257. The next prime is 2228040319. The reversal of 2228040288 is 8820408222.

It is an interprime number because it is at equal distance from previous prime (2228040257) and next prime (2228040319).

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×2228040288² = 9928327049902245888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57720 + ... + 88247.

It is an arithmetic number, because the mean of its divisors is an integer number (89660844).

Almost surely, 2^2228040288 is an apocalyptic number.

It is an amenable number.

2228040288 is an abundant number, since it is smaller than the sum of its proper divisors (4227540480).

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

2228040288 is a wasteful number, since it uses less digits than its factorization.

2228040288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146036 (or 146025 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 2228040288 is about 47202.1216472311. The cubic root of 2228040288 is about 1306.0937358213.

The spelling of 2228040288 in words is "two billion, two hundred twenty-eight million, forty thousand, two hundred eighty-eight".