3012220240 has 40 divisors (see below), whose sum is σ = 7018122240. Its totient is φ = 1202357376.

The previous prime is 3012220217. The next prime is 3012220273. The reversal of 3012220240 is 420222103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984 + ... + 77623.

It is an arithmetic number, because the mean of its divisors is an integer number (175453056).

Almost surely, 2^3012220240 is an apocalyptic number.

It is an amenable number.

3012220240 is an abundant number, since it is smaller than the sum of its proper divisors (4005902000).

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

3012220240 is a wasteful number, since it uses less digits than its factorization.

3012220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79099 (or 79093 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3012220240 is about 54883.6973973146. The cubic root of 3012220240 is about 1444.2052102062.

Adding to 3012220240 its reverse (420222103), we get a palindrome (3432442343).

The spelling of 3012220240 in words is "three billion, twelve million, two hundred twenty thousand, two hundred forty".