28342396 has 24 divisors (see below), whose sum is σ = 52027920. Its totient is φ = 13491072.

The previous prime is 28342393. The next prime is 28342403. The reversal of 28342396 is 69324382.

It is a super-2 number, since 2×28342396² = 1606582822041632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 2^28342396 is an apocalyptic number.

It is an amenable number.

28342396 is a deficient number, since it is larger than the sum of its proper divisors (23685524).

28342396 is a wasteful number, since it uses less digits than its factorization.

28342396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453 (or 3451 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 28342396 is about 5323.7576954629. The cubic root of 28342396 is about 304.8916429563.

The spelling of 28342396 in words is "twenty-eight million, three hundred forty-two thousand, three hundred ninety-six".