49222309 has 4 divisors (see below), whose sum is σ = 50919660. Its totient is φ = 47524960.

The previous prime is 49222211. The next prime is 49222339. The reversal of 49222309 is 90322294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90322294 = 2 ⋅45161147.

It can be written as a sum of positive squares in 2 ways, for example, as 15233409 + 33988900 = 3903^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 49222309 - 2⁹ = 49221797 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 (49222339) 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, 848632 + ... + 848689.

It is an arithmetic number, because the mean of its divisors is an integer number (12729915).

Almost surely, 2^49222309 is an apocalyptic number.

It is an amenable number.

49222309 is a deficient number, since it is larger than the sum of its proper divisors (1697351).

49222309 is a wasteful number, since it uses less digits than its factorization.

49222309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697350.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 49222309 is about 7015.8612443520. The cubic root of 49222309 is about 366.4831352395.

It can be divided in two parts, 492 and 22309, that added together give a square (22801 = 151²).

The spelling of 49222309 in words is "forty-nine million, two hundred twenty-two thousand, three hundred nine".