106640444 has 24 divisors (see below), whose sum is σ = 192310608. Its totient is φ = 51719040.

The previous prime is 106640437. The next prime is 106640447. The reversal of 106640444 is 444046601.

It is a super-2 number, since 2×106640444² = 22744368593034272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106640447) 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, 14819 + ... + 20805.

It is an arithmetic number, because the mean of its divisors is an integer number (8012942).

Almost surely, 2^106640444 is an apocalyptic number.

It is an amenable number.

106640444 is a deficient number, since it is larger than the sum of its proper divisors (85670164).

106640444 is a wasteful number, since it uses less digits than its factorization.

106640444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 106640444 is about 10326.6860124630. The cubic root of 106640444 is about 474.2135744021.

The spelling of 106640444 in words is "one hundred six million, six hundred forty thousand, four hundred forty-four".