16622437 has 8 divisors (see below), whose sum is σ = 17948504. Its totient is φ = 15303168.

The previous prime is 16622407. The next prime is 16622513. The reversal of 16622437 is 73422661.

It can be written as a sum of positive squares in 4 ways, for example, as 349281 + 16273156 = 591^2 + 4034^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16622437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16622399 and 16622408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16622407) 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, 4153 + ... + 7105.

It is an arithmetic number, because the mean of its divisors is an integer number (2243563).

Almost surely, 2^16622437 is an apocalyptic number.

It is an amenable number.

16622437 is a deficient number, since it is larger than the sum of its proper divisors (1326067).

16622437 is a wasteful number, since it uses less digits than its factorization.

16622437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its digits is 12096, while the sum is 31.

The square root of 16622437 is about 4077.0623002353. The cubic root of 16622437 is about 255.2103198838.

The spelling of 16622437 in words is "sixteen million, six hundred twenty-two thousand, four hundred thirty-seven".