2243185972 has 24 divisors (see below), whose sum is σ = 4158653184. Its totient is φ = 1055068032.

The previous prime is 2243185963. The next prime is 2243185981. The reversal of 2243185972 is 2795813422.

It is an interprime number because it is at equal distance from previous prime (2243185963) and next prime (2243185981).

It is a congruent number.

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, 142603 + ... + 157549.

It is an arithmetic number, because the mean of its divisors is an integer number (173277216).

Almost surely, 2^2243185972 is an apocalyptic number.

It is an amenable number.

2243185972 is a deficient number, since it is larger than the sum of its proper divisors (1915467212).

2243185972 is a wasteful number, since it uses less digits than its factorization.

2243185972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17175 (or 17173 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 2243185972 is about 47362.2842776824. The cubic root of 2243185972 is about 1309.0465591170.

The spelling of 2243185972 in words is "two billion, two hundred forty-three million, one hundred eighty-five thousand, nine hundred seventy-two".