22130436 has 24 divisors (see below), whose sum is σ = 51829344. Its totient is φ = 7349440.

The previous prime is 22130431. The next prime is 22130441. The reversal of 22130436 is 63403122.

22130436 = T₂₄₈ + T₂₄₉ + ... + T₅₂₈.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22130431) and next prime (22130441).

It is not an unprimeable number, because it can be changed into a prime (22130431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 91 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (2159556).

Almost surely, 2^22130436 is an apocalyptic number.

It is an amenable number.

22130436 is an abundant number, since it is smaller than the sum of its proper divisors (29698908).

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

22130436 is a wasteful number, since it uses less digits than its factorization.

22130436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22130436 is about 4704.2997353485. The cubic root of 22130436 is about 280.7566101250.

Adding to 22130436 its reverse (63403122), we get a palindrome (85533558).

The spelling of 22130436 in words is "twenty-two million, one hundred thirty thousand, four hundred thirty-six".