28442374 has 8 divisors (see below), whose sum is σ = 42726528. Its totient is φ = 14200200.

The previous prime is 28442363. The next prime is 28442399. The reversal of 28442374 is 47324482.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8742 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (5340816).

Almost surely, 2^28442374 is an apocalyptic number.

28442374 is a deficient number, since it is larger than the sum of its proper divisors (14284154).

28442374 is a wasteful number, since it uses less digits than its factorization.

28442374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990.

The product of its digits is 43008, while the sum is 34.

The square root of 28442374 is about 5333.1392256344. The cubic root of 28442374 is about 305.2497247077.

The spelling of 28442374 in words is "twenty-eight million, four hundred forty-two thousand, three hundred seventy-four".