22013450 has 12 divisors (see below), whose sum is σ = 40945110. Its totient is φ = 8805360.

The previous prime is 22013423. The next prime is 22013477. The reversal of 22013450 is 5431022.

It is an interprime number because it is at equal distance from previous prime (22013423) and next prime (22013477).

It can be written as a sum of positive squares in 3 ways, for example, as 21058921 + 954529 = 4589^2 + 977^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220085 + ... + 220184.

Almost surely, 2^22013450 is an apocalyptic number.

22013450 is a deficient number, since it is larger than the sum of its proper divisors (18931660).

22013450 is a wasteful number, since it uses less digits than its factorization.

22013450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440281 (or 440276 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22013450 is about 4691.8493155684. The cubic root of 22013450 is about 280.2610235979.

Adding to 22013450 its reverse (5431022), we get a palindrome (27444472).

The spelling of 22013450 in words is "twenty-two million, thirteen thousand, four hundred fifty".