16109478 has 96 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 4092480.

The previous prime is 16109459. The next prime is 16109479. The reversal of 16109478 is 87490161.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16109479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81676 + ... + 81872.

It is an arithmetic number, because the mean of its divisors is an integer number (463320).

Almost surely, 2^16109478 is an apocalyptic number.

16109478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16109478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22239360).

16109478 is an abundant number, since it is smaller than the sum of its proper divisors (28369242).

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

16109478 is a wasteful number, since it uses less digits than its factorization.

16109478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 16109478 is about 4013.6614206981. The cubic root of 16109478 is about 252.5576276009.

The spelling of 16109478 in words is "sixteen million, one hundred nine thousand, four hundred seventy-eight".