3223207440 has 60 divisors (see below), whose sum is σ = 10824607404. Its totient is φ = 859521792.

The previous prime is 3223207439. The next prime is 3223207441. The reversal of 3223207440 is 447023223.

It is an interprime number because it is at equal distance from previous prime (3223207439) and next prime (3223207441).

It can be written as a sum of positive squares in 2 ways, for example, as 1139467536 + 2083739904 = 33756^2 + 45648^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (3223207441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2237619 + ... + 2239058.

Almost surely, 2^3223207440 is an apocalyptic number.

3223207440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3223207440 is an abundant number, since it is smaller than the sum of its proper divisors (7601399964).

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

3223207440 is a wasteful number, since it uses less digits than its factorization.

3223207440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476696 (or 4476687 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 3223207440 is about 56773.2986535044. The cubic root of 3223207440 is about 1477.1663946577.

The spelling of 3223207440 in words is "three billion, two hundred twenty-three million, two hundred seven thousand, four hundred forty".