109906642 has 8 divisors (see below), whose sum is σ = 166118832. Its totient is φ = 54533700.

The previous prime is 109906637. The next prime is 109906661. The reversal of 109906642 is 246609901.

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

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, 209484 + ... + 210007.

It is an arithmetic number, because the mean of its divisors is an integer number (20764854).

Almost surely, 2^109906642 is an apocalyptic number.

109906642 is a deficient number, since it is larger than the sum of its proper divisors (56212190).

109906642 is a wasteful number, since it uses less digits than its factorization.

109906642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419624.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 109906642 is about 10483.6368689496. The cubic root of 109906642 is about 479.0063966208.

The spelling of 109906642 in words is "one hundred nine million, nine hundred six thousand, six hundred forty-two".