16018428 has 24 divisors (see below), whose sum is σ = 37710288. Its totient is φ = 5291776.

The previous prime is 16018393. The next prime is 16018433. The reversal of 16018428 is 82481061.

It is a junction number, because it is equal to n+sod(n) for n = 16018395 and 16018404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 7262.

It is an arithmetic number, because the mean of its divisors is an integer number (1571262).

Almost surely, 2^16018428 is an apocalyptic number.

It is an amenable number.

16018428 is an abundant number, since it is smaller than the sum of its proper divisors (21691860).

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

16018428 is a wasteful number, since it uses less digits than its factorization.

16018428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933 (or 11931 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 16018428 is about 4002.3028371177. The cubic root of 16018428 is about 252.0809138002.

Adding to 16018428 its reverse (82481061), we get a palindrome (98499489).

The spelling of 16018428 in words is "sixteen million, eighteen thousand, four hundred twenty-eight".