3223255440 has 40 divisors (see below), whose sum is σ = 9992092608. Its totient is φ = 859534720.

The previous prime is 3223255339. The next prime is 3223255457. The reversal of 3223255440 is 445523223.

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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 3223255398 and 3223255407.

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, 6714876 + ... + 6715355.

Almost surely, 2^3223255440 is an apocalyptic number.

3223255440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3223255440 is an abundant number, since it is smaller than the sum of its proper divisors (6768837168).

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

3223255440 is a wasteful number, since it uses less digits than its factorization.

3223255440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13430247 (or 13430241 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 3223255440 is about 56773.7213858665. The cubic root of 3223255440 is about 1477.1737272745.

Adding to 3223255440 its reverse (445523223), we get a palindrome (3668778663).

The spelling of 3223255440 in words is "three billion, two hundred twenty-three million, two hundred fifty-five thousand, four hundred forty".