28280962 has 24 divisors (see below), whose sum is σ = 45567396. Its totient is φ = 13160448.

The previous prime is 28280957. The next prime is 28280969. The reversal of 28280962 is 26908282.

It can be written as a sum of positive squares in 6 ways, for example, as 7295401 + 20985561 = 2701^2 + 4581^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28280969) by changing a digit.

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, 65098 + ... + 65530.

Almost surely, 2^28280962 is an apocalyptic number.

28280962 is a deficient number, since it is larger than the sum of its proper divisors (17286434).

28280962 is a wasteful number, since it uses less digits than its factorization.

28280962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28280962 is about 5317.9847686882. The cubic root of 28280962 is about 304.6711927297.

The spelling of 28280962 in words is "twenty-eight million, two hundred eighty thousand, nine hundred sixty-two".