3223620736 has 64 divisors (see below), whose sum is σ = 7518591360. Its totient is φ = 1347840000.

The previous prime is 3223620727. The next prime is 3223620761. The reversal of 3223620736 is 6370263223.

It is a tau number, because it is divible by the number of its divisors (64).

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, 7140 + ... + 80611.

It is an arithmetic number, because the mean of its divisors is an integer number (117477990).

Almost surely, 2^3223620736 is an apocalyptic number.

It is an amenable number.

3223620736 is an abundant number, since it is smaller than the sum of its proper divisors (4294970624).

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

3223620736 is an equidigital number, since it uses as much as digits as its factorization.

3223620736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87813 (or 87801 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 3223620736 is about 56776.9384169312. The cubic root of 3223620736 is about 1477.2295285475.

Adding to 3223620736 its reverse (6370263223), we get a palindrome (9593883959).

The spelling of 3223620736 in words is "three billion, two hundred twenty-three million, six hundred twenty thousand, seven hundred thirty-six".