16422270 has 64 divisors (see below), whose sum is σ = 42439680. Its totient is φ = 4053888.

The previous prime is 16422269. The next prime is 16422293. The reversal of 16422270 is 7222461.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16422270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26484 + ... + 27096.

It is an arithmetic number, because the mean of its divisors is an integer number (663120).

Almost surely, 2^16422270 is an apocalyptic number.

16422270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16422270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21219840).

16422270 is an abundant number, since it is smaller than the sum of its proper divisors (26017410).

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

16422270 is a wasteful number, since it uses less digits than its factorization.

16422270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 16422270 is about 4052.4400057249. The cubic root of 16422270 is about 254.1817679224.

The spelling of 16422270 in words is "sixteen million, four hundred twenty-two thousand, two hundred seventy".