2921228252 has 48 divisors (see below), whose sum is σ = 5704437312. Its totient is φ = 1301836800.

The previous prime is 2921228251. The next prime is 2921228257. The reversal of 2921228252 is 2528221292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921228251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148718 + ... + 167210.

It is an arithmetic number, because the mean of its divisors is an integer number (118842444).

Almost surely, 2^2921228252 is an apocalyptic number.

It is an amenable number.

2921228252 is a deficient number, since it is larger than the sum of its proper divisors (2783209060).

2921228252 is a wasteful number, since it uses less digits than its factorization.

2921228252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18638 (or 18636 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 2921228252 is about 54048.3880610699. The cubic root of 2921228252 is about 1429.5142777955.

The spelling of 2921228252 in words is "two billion, nine hundred twenty-one million, two hundred twenty-eight thousand, two hundred fifty-two".