16042878 has 48 divisors (see below), whose sum is σ = 37237200. Its totient is φ = 4976640.

The previous prime is 16042861. The next prime is 16042879. The reversal of 16042878 is 87824061.

16042878 is a `hidden beast` number, since 160 + 428 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16042879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20478 + ... + 21246.

It is an arithmetic number, because the mean of its divisors is an integer number (775775).

Almost surely, 2^16042878 is an apocalyptic number.

16042878 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 16042878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18618600).

16042878 is an abundant number, since it is smaller than the sum of its proper divisors (21194322).

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

16042878 is a wasteful number, since it uses less digits than its factorization.

16042878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 16042878 is about 4005.3561639385. The cubic root of 16042878 is about 252.2091045969.

The spelling of 16042878 in words is "sixteen million, forty-two thousand, eight hundred seventy-eight".