1772230349 has 4 divisors (see below), whose sum is σ = 1772674464. Its totient is φ = 1771786236.

The previous prime is 1772230319. The next prime is 1772230367. The reversal of 1772230349 is 9430322771.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9430322771 = 751 ⋅12557021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1772230349 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 (1772230309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216017 + ... + 224070.

It is an arithmetic number, because the mean of its divisors is an integer number (443168616).

Almost surely, 2^1772230349 is an apocalyptic number.

It is an amenable number.

1772230349 is a deficient number, since it is larger than the sum of its proper divisors (444115).

1772230349 is an equidigital number, since it uses as much as digits as its factorization.

1772230349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444114.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 1772230349 is about 42097.8663236036. The cubic root of 1772230349 is about 1210.1523722691.

The spelling of 1772230349 in words is "one billion, seven hundred seventy-two million, two hundred thirty thousand, three hundred forty-nine".