2253644220 has 48 divisors (see below), whose sum is σ = 6386244480. Its totient is φ = 593729856.

The previous prime is 2253644203. The next prime is 2253644243. The reversal of 2253644220 is 224463522.

2253644220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221290 + ... + 231249.

It is an arithmetic number, because the mean of its divisors is an integer number (133046760).

Almost surely, 2^2253644220 is an apocalyptic number.

2253644220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2253644220 is an abundant number, since it is smaller than the sum of its proper divisors (4132600260).

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

2253644220 is a wasteful number, since it uses less digits than its factorization.

2253644220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452634 (or 452632 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2253644220 is about 47472.5628126395. The cubic root of 2253644220 is about 1311.0777642630.

The spelling of 2253644220 in words is "two billion, two hundred fifty-three million, six hundred forty-four thousand, two hundred twenty".