28442607 has 8 divisors (see below), whose sum is σ = 38403840. Its totient is φ = 18721560.

The previous prime is 28442551. The next prime is 28442627. The reversal of 28442607 is 70624482.

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

It is not a de Polignac number, because 28442607 - 2²⁴ = 11665391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28442627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59769 + ... + 60242.

It is an arithmetic number, because the mean of its divisors is an integer number (4800480).

Almost surely, 2^28442607 is an apocalyptic number.

28442607 is a deficient number, since it is larger than the sum of its proper divisors (9961233).

28442607 is a wasteful number, since it uses less digits than its factorization.

28442607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120093.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 28442607 is about 5333.1610701347. The cubic root of 28442607 is about 305.2505582409.

The spelling of 28442607 in words is "twenty-eight million, four hundred forty-two thousand, six hundred seven".