28015626 has 32 divisors (see below), whose sum is σ = 59572800. Its totient is φ = 8752896.

The previous prime is 28015621. The next prime is 28015627. The reversal of 28015626 is 62651082.

It is a junction number, because it is equal to n+sod(n) for n = 28015593 and 28015602.

It is not an unprimeable number, because it can be changed into a prime (28015621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35205 + ... + 35991.

It is an arithmetic number, because the mean of its divisors is an integer number (1861650).

Almost surely, 2^28015626 is an apocalyptic number.

28015626 is an abundant number, since it is smaller than the sum of its proper divisors (31557174).

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

28015626 is a wasteful number, since it uses less digits than its factorization.

28015626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28015626 is about 5292.9789343998. The cubic root of 28015626 is about 303.7153744676.

The spelling of 28015626 in words is "twenty-eight million, fifteen thousand, six hundred twenty-six".