2243390077 has 6 divisors (see below), whose sum is σ = 2345170142. Its totient is φ = 2145850872.

The previous prime is 2243390063. The next prime is 2243390081. The reversal of 2243390077 is 7700933422.

It can be written as a sum of positive squares in only one way, i.e., 2069704036 + 173686041 = 45494^2 + 13179^2 .

It is not a de Polignac number, because 2243390077 - 2²³ = 2235001469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243390777) 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 5 ways as a sum of consecutive naturals, for example, 2119878 + ... + 2120935.

Almost surely, 2^2243390077 is an apocalyptic number.

It is an amenable number.

2243390077 is a deficient number, since it is larger than the sum of its proper divisors (101780065).

2243390077 is an equidigital number, since it uses as much as digits as its factorization.

2243390077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240859 (or 4240836 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 2243390077 is about 47364.4389494904. The cubic root of 2243390077 is about 1309.0862608104.

The spelling of 2243390077 in words is "two billion, two hundred forty-three million, three hundred ninety thousand, seventy-seven".