22071234 has 8 divisors (see below), whose sum is σ = 44142480. Its totient is φ = 7357076.

The previous prime is 22071229. The next prime is 22071239. The reversal of 22071234 is 43217022.

It is an interprime number because it is at equal distance from previous prime (22071229) and next prime (22071239).

It is a sphenic number, since it is the product of 3 distinct primes.

22071234 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22071234.

It is not an unprimeable number, because it can be changed into a prime (22071239) 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 3 ways as a sum of consecutive naturals, for example, 1839264 + ... + 1839275.

It is an arithmetic number, because the mean of its divisors is an integer number (5517810).

Almost surely, 2^22071234 is an apocalyptic number.

22071234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22071234 is a wasteful number, since it uses less digits than its factorization.

22071234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678544.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 22071234 is about 4698.0031928469. The cubic root of 22071234 is about 280.5060321973.

Adding to 22071234 its reverse (43217022), we get a palindrome (65288256).

The spelling of 22071234 in words is "twenty-two million, seventy-one thousand, two hundred thirty-four".