109402478 has 8 divisors (see below), whose sum is σ = 164157168. Its totient is φ = 54683424.

The previous prime is 109402459. The next prime is 109402483. The reversal of 109402478 is 874204901.

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

It is a congruent number.

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, 950 + ... + 14822.

It is an arithmetic number, because the mean of its divisors is an integer number (20519646).

Almost surely, 2^109402478 is an apocalyptic number.

109402478 is a deficient number, since it is larger than the sum of its proper divisors (54754690).

109402478 is a wasteful number, since it uses less digits than its factorization.

109402478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17818.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 109402478 is about 10459.5639488461. The cubic root of 109402478 is about 478.2728407383.

The spelling of 109402478 in words is "one hundred nine million, four hundred two thousand, four hundred seventy-eight".