22330477 has 12 divisors (see below), whose sum is σ = 24328020. Its totient is φ = 20487168.

The previous prime is 22330463. The next prime is 22330519. The reversal of 22330477 is 77403322.

It can be written as a sum of positive squares in 6 ways, for example, as 1069156 + 21261321 = 1034^2 + 4611^2 .

It is not a de Polignac number, because 22330477 - 2⁷ = 22330349 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 (22330417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38413 + ... + 38989.

It is an arithmetic number, because the mean of its divisors is an integer number (2027335).

Almost surely, 2^22330477 is an apocalyptic number.

It is an amenable number.

22330477 is a deficient number, since it is larger than the sum of its proper divisors (1997543).

22330477 is a wasteful number, since it uses less digits than its factorization.

22330477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 22330477 is about 4725.5134112602. The cubic root of 22330477 is about 281.6000105256.

Adding to 22330477 its reverse (77403322), we get a palindrome (99733799).

The spelling of 22330477 in words is "twenty-two million, three hundred thirty thousand, four hundred seventy-seven".