16400106 has 24 divisors (see below), whose sum is σ = 35627904. Its totient is φ = 5452200.

The previous prime is 16400101. The next prime is 16400141. The reversal of 16400106 is 60100461.

It is a super-2 number, since 2×16400106² = 537926953622472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (16400101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7431 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (1484496).

Almost surely, 2^16400106 is an apocalyptic number.

16400106 is an abundant number, since it is smaller than the sum of its proper divisors (19227798).

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

16400106 is a wasteful number, since it uses less digits than its factorization.

16400106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16400106 is about 4049.7044336593. The cubic root of 16400106 is about 254.0673659330.

Adding to 16400106 its reverse (60100461), we get a palindrome (76500567).

The spelling of 16400106 in words is "sixteen million, four hundred thousand, one hundred six".