106440636 has 12 divisors (see below), whose sum is σ = 248361512. Its totient is φ = 35480208.

The previous prime is 106440629. The next prime is 106440637. The reversal of 106440636 is 636044601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×106440636² = 22659217984168992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106440637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4435015 + ... + 4435038.

Almost surely, 2^106440636 is an apocalyptic number.

It is an amenable number.

106440636 is an abundant number, since it is smaller than the sum of its proper divisors (141920876).

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

106440636 is a wasteful number, since it uses less digits than its factorization.

106440636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870060 (or 8870058 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 106440636 is about 10317.0071241615. The cubic root of 106440636 is about 473.9172174682.

The spelling of 106440636 in words is "one hundred six million, four hundred forty thousand, six hundred thirty-six".