16078428 has 36 divisors (see below), whose sum is σ = 41140008. Its totient is φ = 5293920.

The previous prime is 16078417. The next prime is 16078453. The reversal of 16078428 is 82487061.

16078428 is a `hidden beast` number, since 1 + 607 + 8 + 42 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16078392 and 16078401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (1142778).

Almost surely, 2^16078428 is an apocalyptic number.

16078428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16078428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20570004).

16078428 is an abundant number, since it is smaller than the sum of its proper divisors (25061580).

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

16078428 is a wasteful number, since it uses less digits than its factorization.

With its successor (16078429) it forms an eRAP, since the sums of their prime factors are consecutive (5474 and 5475).

16078428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474 (or 5469 counting only the distinct ones).

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

The square root of 16078428 is about 4009.7915157773. The cubic root of 16078428 is about 252.3952602872.

The spelling of 16078428 in words is "sixteen million, seventy-eight thousand, four hundred twenty-eight".