3222020400 has 60 divisors (see below), whose sum is σ = 10321209192. Its totient is φ = 859205120.

The previous prime is 3222020393. The next prime is 3222020413. The reversal of 3222020400 is 40202223.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3222020400.

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, 1341309 + ... + 1343708.

Almost surely, 2^3222020400 is an apocalyptic number.

3222020400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3222020400 is an abundant number, since it is smaller than the sum of its proper divisors (7099188792).

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

3222020400 is a wasteful number, since it uses less digits than its factorization.

3222020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685038 (or 2685027 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 3222020400 is about 56762.8434805727. The cubic root of 3222020400 is about 1476.9850358789.

Adding to 3222020400 its reverse (40202223), we get a palindrome (3262222623).

The spelling of 3222020400 in words is "three billion, two hundred twenty-two million, twenty thousand, four hundred".