28416042 has 16 divisors (see below), whose sum is σ = 63146880. Its totient is φ = 9471996.

The previous prime is 28416029. The next prime is 28416043. The reversal of 28416042 is 24061482.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28415997 and 28416015.

It is not an unprimeable number, because it can be changed into a prime (28416043) 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, 263058 + ... + 263165.

It is an arithmetic number, because the mean of its divisors is an integer number (3946680).

Almost surely, 2^28416042 is an apocalyptic number.

28416042 is an abundant number, since it is smaller than the sum of its proper divisors (34730838).

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

28416042 is a wasteful number, since it uses less digits than its factorization.

28416042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526234 (or 526228 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28416042 is about 5330.6699391352. The cubic root of 28416042 is about 305.1554953780.

The spelling of 28416042 in words is "twenty-eight million, four hundred sixteen thousand, forty-two".