109249438 has 8 divisors (see below), whose sum is σ = 169525080. Its totient is φ = 52741080.

The previous prime is 109249433. The next prime is 109249453. The reversal of 109249438 is 834942901.

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

It is a self number, because there is not a number n which added to its sum of digits gives 109249438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109249433) 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, 941748 + ... + 941863.

It is an arithmetic number, because the mean of its divisors is an integer number (21190635).

Almost surely, 2^109249438 is an apocalyptic number.

109249438 is a deficient number, since it is larger than the sum of its proper divisors (60275642).

109249438 is a wasteful number, since it uses less digits than its factorization.

109249438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883642.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 109249438 is about 10452.2455960430. The cubic root of 109249438 is about 478.0497225984.

The spelling of 109249438 in words is "one hundred nine million, two hundred forty-nine thousand, four hundred thirty-eight".