22013770 has 16 divisors (see below), whose sum is σ = 39801960. Its totient is φ = 8766144.

The previous prime is 22013767. The next prime is 22013777. The reversal of 22013770 is 7731022.

It can be written as a sum of positive squares in 4 ways, for example, as 21464689 + 549081 = 4633^2 + 741^2 .

It is a super-2 number, since 2×22013770² = 969212139225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22013777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517 + ... + 7096.

Almost surely, 2^22013770 is an apocalyptic number.

22013770 is a deficient number, since it is larger than the sum of its proper divisors (17788190).

22013770 is a wasteful number, since it uses less digits than its factorization.

22013770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 22013770 is about 4691.8834171364. The cubic root of 22013770 is about 280.2623816024.

Adding to 22013770 its reverse (7731022), we get a palindrome (29744792).

The spelling of 22013770 in words is "twenty-two million, thirteen thousand, seven hundred seventy".