16422473 has 4 divisors (see below), whose sum is σ = 16700880. Its totient is φ = 16144068.

The previous prime is 16422457. The next prime is 16422491. The reversal of 16422473 is 37422461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37422461 = 59 ⋅634279.

It is a cyclic number.

It is not a de Polignac number, because 16422473 - 2⁴ = 16422457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16422443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139115 + ... + 139232.

It is an arithmetic number, because the mean of its divisors is an integer number (4175220).

Almost surely, 2^16422473 is an apocalyptic number.

It is an amenable number.

16422473 is a deficient number, since it is larger than the sum of its proper divisors (278407).

16422473 is an equidigital number, since it uses as much as digits as its factorization.

16422473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278406.

The product of its digits is 8064, while the sum is 29.

The square root of 16422473 is about 4052.4650522861. The cubic root of 16422473 is about 254.1828152539.

The spelling of 16422473 in words is "sixteen million, four hundred twenty-two thousand, four hundred seventy-three".