28421602 has 16 divisors (see below), whose sum is σ = 46972224. Its totient is φ = 12790000.

The previous prime is 28421599. The next prime is 28421611. The reversal of 28421602 is 20612482.

It is a happy 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, 4174 + ... + 8617.

It is an arithmetic number, because the mean of its divisors is an integer number (2935764).

Almost surely, 2^28421602 is an apocalyptic number.

28421602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28421602 is a deficient number, since it is larger than the sum of its proper divisors (18550622).

28421602 is a wasteful number, since it uses less digits than its factorization.

28421602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12905.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28421602 is about 5331.1914240627. The cubic root of 28421602 is about 305.1753967411.

It can be divided in two parts, 2842 and 1602, that added together give a palindrome (4444).

The spelling of 28421602 in words is "twenty-eight million, four hundred twenty-one thousand, six hundred two".