16278042 has 16 divisors (see below), whose sum is σ = 35515872. Its totient is φ = 4932720.

The previous prime is 16277999. The next prime is 16278047. The reversal of 16278042 is 24087261.

It is not an unprimeable number, because it can be changed into a prime (16278047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123253 + ... + 123384.

It is an arithmetic number, because the mean of its divisors is an integer number (2219742).

Almost surely, 2^16278042 is an apocalyptic number.

16278042 is an abundant number, since it is smaller than the sum of its proper divisors (19237830).

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

16278042 is a wasteful number, since it uses less digits than its factorization.

16278042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246653.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 16278042 is about 4034.6055569287. The cubic root of 16278042 is about 253.4354647451.

It can be divided in two parts, 1627 and 8042, that added together give a palindrome (9669).

The spelling of 16278042 in words is "sixteen million, two hundred seventy-eight thousand, forty-two".