28213342 has 8 divisors (see below), whose sum is σ = 42708600. Its totient is φ = 13977144.

The previous prime is 28213337. The next prime is 28213343. The reversal of 28213342 is 24331282.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28213343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64492 + ... + 64927.

It is an arithmetic number, because the mean of its divisors is an integer number (5338575).

Almost surely, 2^28213342 is an apocalyptic number.

28213342 is a deficient number, since it is larger than the sum of its proper divisors (14495258).

28213342 is a wasteful number, since it uses less digits than its factorization.

28213342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129530.

The product of its digits is 2304, while the sum is 25.

The square root of 28213342 is about 5311.6232923655. The cubic root of 28213342 is about 304.4281752109.

The spelling of 28213342 in words is "twenty-eight million, two hundred thirteen thousand, three hundred forty-two".