28313246 has 24 divisors (see below), whose sum is σ = 46322424. Its totient is φ = 12972960.

The previous prime is 28313239. The next prime is 28313273. The reversal of 28313246 is 64231382.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 71120 + ... + 71516.

It is an arithmetic number, because the mean of its divisors is an integer number (1930101).

Almost surely, 2^28313246 is an apocalyptic number.

28313246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28313246 is a deficient number, since it is larger than the sum of its proper divisors (18009178).

28313246 is a wasteful number, since it uses less digits than its factorization.

28313246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 623 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 28313246 is about 5321.0192632615. The cubic root of 28313246 is about 304.7870806358.

The spelling of 28313246 in words is "twenty-eight million, three hundred thirteen thousand, two hundred forty-six".