3220031250 has 126 divisors (see below), whose sum is σ = 8803070913. Its totient is φ = 850650000.

The previous prime is 3220031249. The next prime is 3220031261. The reversal of 3220031250 is 521300223.

It can be written as a sum of positive squares in 4 ways, for example, as 549105489 + 2670925761 = 23433^2 + 51681^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=40125.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 30093697 + ... + 30093803.

Almost surely, 2^3220031250 is an apocalyptic number.

3220031250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220031250

3220031250 is an abundant number, since it is smaller than the sum of its proper divisors (5583039663).

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

3220031250 is an frugal number, since it uses more digits than its factorization.

3220031250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3220031250 is about 56745.3191902204. The cubic root of 3220031250 is about 1476.6810289498.

Multiplying 3220031250 by its sum of digits (18), we get a square (57960562500 = 240750²).

3220031250 divided by its sum of digits (18) gives a square (178890625 = 13375²).

Adding to 3220031250 its reverse (521300223), we get a palindrome (3741331473).

The spelling of 3220031250 in words is "three billion, two hundred twenty million, thirty-one thousand, two hundred fifty".