109659942 has 72 divisors (see below), whose sum is σ = 279351072. Its totient is φ = 30996000.

The previous prime is 109659941. The next prime is 109659959. The reversal of 109659942 is 249956901.

109659942 is a `hidden beast` number, since 10 + 9 + 6 + 599 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109659941) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88467 + ... + 89697.

It is an arithmetic number, because the mean of its divisors is an integer number (3879876).

Almost surely, 2^109659942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109659942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139675536).

109659942 is an abundant number, since it is smaller than the sum of its proper divisors (169691130).

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

109659942 is a wasteful number, since it uses less digits than its factorization.

109659942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 109659942 is about 10471.8643039337. The cubic root of 109659942 is about 478.6477303836.

The spelling of 109659942 in words is "one hundred nine million, six hundred fifty-nine thousand, nine hundred forty-two".