16406930 has 16 divisors (see below), whose sum is σ = 29688984. Its totient is φ = 6528000.

The previous prime is 16406927. The next prime is 16406933. The reversal of 16406930 is 3960461.

It is an interprime number because it is at equal distance from previous prime (16406927) and next prime (16406933).

It can be written as a sum of positive squares in 4 ways, for example, as 7219969 + 9186961 = 2687^2 + 3031^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16406893 and 16406902.

It is not an unprimeable number, because it can be changed into a prime (16406933) 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 7 ways as a sum of consecutive naturals, for example, 2321 + ... + 6180.

Almost surely, 2^16406930 is an apocalyptic number.

16406930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16406930 is a deficient number, since it is larger than the sum of its proper divisors (13282054).

16406930 is a wasteful number, since it uses less digits than its factorization.

16406930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 16406930 is about 4050.5468766575. The cubic root of 16406930 is about 254.1025997560.

The spelling of 16406930 in words is "sixteen million, four hundred six thousand, nine hundred thirty".