28445602 has 8 divisors (see below), whose sum is σ = 42994512. Its totient is φ = 14114100.

The previous prime is 28445537. The next prime is 28445623. The reversal of 28445602 is 20654482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 54024 + ... + 54547.

It is an arithmetic number, because the mean of its divisors is an integer number (5374314).

Almost surely, 2^28445602 is an apocalyptic number.

28445602 is a deficient number, since it is larger than the sum of its proper divisors (14548910).

28445602 is a wasteful number, since it uses less digits than its factorization.

28445602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108704.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28445602 is about 5333.4418530626. The cubic root of 28445602 is about 305.2612721362.

The spelling of 28445602 in words is "twenty-eight million, four hundred forty-five thousand, six hundred two".