106390818 has 24 divisors (see below), whose sum is σ = 236137356. Its totient is φ = 34598400.

The previous prime is 106390813. The next prime is 106390819. The reversal of 106390818 is 818093601.

106390818 is a `hidden beast` number, since 1 + 0 + 639 + 0 + 8 + 18 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93837969 + 12552849 = 9687^2 + 3543^2 .

It is a super-2 number, since 2×106390818² = 22638012309418248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106390813) 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 11 ways as a sum of consecutive naturals, for example, 71343 + ... + 72818.

Almost surely, 2^106390818 is an apocalyptic number.

106390818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

106390818 is an abundant number, since it is smaller than the sum of its proper divisors (129746538).

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

106390818 is a wasteful number, since it uses less digits than its factorization.

106390818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144210 (or 144207 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 106390818 is about 10314.5924786198. The cubic root of 106390818 is about 473.8432692308.

The spelling of 106390818 in words is "one hundred six million, three hundred ninety thousand, eight hundred eighteen".