22404947149 has 4 divisors (see below), whose sum is σ = 24128404636. Its totient is φ = 20681489664.

The previous prime is 22404947129. The next prime is 22404947179. The reversal of 22404947149 is 94174940422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4383764100 + 18021183049 = 66210^2 + 134243^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404947149 - 2¹³ = 22404938957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22404947099 and 22404947108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404947129) 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 3 ways as a sum of consecutive naturals, for example, 861728724 + ... + 861728749.

It is an arithmetic number, because the mean of its divisors is an integer number (6032101159).

Almost surely, 2^22404947149 is an apocalyptic number.

It is an amenable number.

22404947149 is a deficient number, since it is larger than the sum of its proper divisors (1723457487).

22404947149 is a wasteful number, since it uses less digits than its factorization.

22404947149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723457486.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 22404947149 in words is "twenty-two billion, four hundred four million, nine hundred forty-seven thousand, one hundred forty-nine".