109639338 has 32 divisors (see below), whose sum is σ = 222670080. Its totient is φ = 35985600.

The previous prime is 109639337. The next prime is 109639339. The reversal of 109639338 is 833936901.

It is an interprime number because it is at equal distance from previous prime (109639337) and next prime (109639339).

It is a self number, because there is not a number n which added to its sum of digits gives 109639338.

It is not an unprimeable number, because it can be changed into a prime (109639333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144456 + ... + 145212.

It is an arithmetic number, because the mean of its divisors is an integer number (6958440).

Almost surely, 2^109639338 is an apocalyptic number.

109639338 is an abundant number, since it is smaller than the sum of its proper divisors (113030742).

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

109639338 is a wasteful number, since it uses less digits than its factorization.

109639338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 109639338 is about 10470.8804787372. The cubic root of 109639338 is about 478.6177508080.

It can be divided in two parts, 10963 and 9338, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 109639338 in words is "one hundred nine million, six hundred thirty-nine thousand, three hundred thirty-eight".