106438866 has 16 divisors (see below), whose sum is σ = 213638688. Its totient is φ = 35352800.

The previous prime is 106438831. The next prime is 106438867. The reversal of 106438866 is 668834601.

It is a happy number.

It is a super-2 number, since 2×106438866² = 22658464390731912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106438867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29880 + ... + 33251.

It is an arithmetic number, because the mean of its divisors is an integer number (13352418).

Almost surely, 2^106438866 is an apocalyptic number.

106438866 is an abundant number, since it is smaller than the sum of its proper divisors (107199822).

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

106438866 is a wasteful number, since it uses less digits than its factorization.

106438866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63417.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 106438866 is about 10316.9213431139. The cubic root of 106438866 is about 473.9145905325.

The spelling of 106438866 in words is "one hundred six million, four hundred thirty-eight thousand, eight hundred sixty-six".