106405642 has 8 divisors (see below), whose sum is σ = 182409696. Its totient is φ = 45602412.

The previous prime is 106405639. The next prime is 106405657. The reversal of 106405642 is 246504601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×106405642² = 22644321298864328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106405642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3800188 + ... + 3800215.

It is an arithmetic number, because the mean of its divisors is an integer number (22801212).

Almost surely, 2^106405642 is an apocalyptic number.

106405642 is a deficient number, since it is larger than the sum of its proper divisors (76004054).

106405642 is an equidigital number, since it uses as much as digits as its factorization.

106405642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600412.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 106405642 is about 10315.3110471764. The cubic root of 106405642 is about 473.8652759119.

The spelling of 106405642 in words is "one hundred six million, four hundred five thousand, six hundred forty-two".