22633040 has 20 divisors (see below), whose sum is σ = 52622004. Its totient is φ = 9053184.

The previous prime is 22633027. The next prime is 22633057. The reversal of 22633040 is 4033622.

It can be written as a sum of positive squares in 2 ways, for example, as 15429184 + 7203856 = 3928^2 + 2684^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141377 + ... + 141536.

Almost surely, 2^22633040 is an apocalyptic number.

22633040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22633040 is an abundant number, since it is smaller than the sum of its proper divisors (29988964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22633040 is a wasteful number, since it uses less digits than its factorization.

22633040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282926 (or 282920 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22633040 is about 4757.4194685775. The cubic root of 22633040 is about 282.8661397093.

Adding to 22633040 its reverse (4033622), we get a palindrome (26666662).

The spelling of 22633040 in words is "twenty-two million, six hundred thirty-three thousand, forty".