16422461 has 4 divisors (see below), whose sum is σ = 17915424. Its totient is φ = 14929500.

The previous prime is 16422457. The next prime is 16422491.

16422461 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 16422461 - 2² = 16422457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16422461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16422401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746465 + ... + 746486.

It is an arithmetic number, because the mean of its divisors is an integer number (4478856).

Almost surely, 2^16422461 is an apocalyptic number.

16422461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16422461 is a deficient number, since it is larger than the sum of its proper divisors (1492963).

16422461 is a wasteful number, since it uses less digits than its factorization.

16422461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492962.

The product of its digits is 2304, while the sum is 26.

The square root of 16422461 is about 4052.4635717055. The cubic root of 16422461 is about 254.1827533430.

The spelling of 16422461 in words is "sixteen million, four hundred twenty-two thousand, four hundred sixty-one".