16416423 has 6 divisors (see below), whose sum is σ = 23712624. Its totient is φ = 10944276.

The previous prime is 16416409. The next prime is 16416431. The reversal of 16416423 is 32461461.

16416423 is a `hidden beast` number, since 16 + 4 + 1 + 642 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-16416423 is a prime.

It is a super-2 number, since 2×16416423² = 538997888229858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16416403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 912015 + ... + 912032.

It is an arithmetic number, because the mean of its divisors is an integer number (3952104).

Almost surely, 2^16416423 is an apocalyptic number.

16416423 is a deficient number, since it is larger than the sum of its proper divisors (7296201).

16416423 is a wasteful number, since it uses less digits than its factorization.

16416423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824053 (or 1824050 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 16416423 is about 4051.7185242808. The cubic root of 16416423 is about 254.1515979719.

Adding to 16416423 its reverse (32461461), we get a palindrome (48877884).

The spelling of 16416423 in words is "sixteen million, four hundred sixteen thousand, four hundred twenty-three".