3440023220 has 48 divisors (see below), whose sum is σ = 7399495488. Its totient is φ = 1342656000.

The previous prime is 3440023217. The next prime is 3440023241. The reversal of 3440023220 is 223200443.

It is a Harshad number since it is a multiple of its sum of digits (20).

3440023220 is a modest number, since divided by 23220 gives 3440 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3440023192 and 3440023201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1527095 + ... + 1529345.

It is an arithmetic number, because the mean of its divisors is an integer number (154156156).

Almost surely, 2^3440023220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3440023220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3699747744).

3440023220 is an abundant number, since it is smaller than the sum of its proper divisors (3959472268).

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

3440023220 is a wasteful number, since it uses less digits than its factorization.

3440023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 3440023220 is about 58651.7111429837. The cubic root of 3440023220 is about 1509.5718593789.

Adding to 3440023220 its reverse (223200443), we get a palindrome (3663223663).

The spelling of 3440023220 in words is "three billion, four hundred forty million, twenty-three thousand, two hundred twenty".