22071516 has 12 divisors (see below), whose sum is σ = 51500232. Its totient is φ = 7357168.

The previous prime is 22071463. The next prime is 22071551. The reversal of 22071516 is 61517022.

It is a tau number, because it is divible by the number of its divisors (12).

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, 919635 + ... + 919658.

It is an arithmetic number, because the mean of its divisors is an integer number (4291686).

Almost surely, 2^22071516 is an apocalyptic number.

It is an amenable number.

22071516 is an abundant number, since it is smaller than the sum of its proper divisors (29428716).

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

22071516 is a wasteful number, since it uses less digits than its factorization.

22071516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839300 (or 1839298 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 22071516 is about 4698.0332055021. The cubic root of 22071516 is about 280.5072268498.

Adding to 22071516 its reverse (61517022), we get a palindrome (83588538).

The spelling of 22071516 in words is "twenty-two million, seventy-one thousand, five hundred sixteen".