28616146 has 16 divisors (see below), whose sum is σ = 46862424. Its totient is φ = 13025664.

The previous prime is 28616143. The next prime is 28616167. The reversal of 28616146 is 64161682.

It can be written as a sum of positive squares in 4 ways, for example, as 12173121 + 16443025 = 3489^2 + 4055^2 .

It is not an unprimeable number, because it can be changed into a prime (28616141) 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, 5641 + ... + 9436.

Almost surely, 2^28616146 is an apocalyptic number.

28616146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28616146 is a deficient number, since it is larger than the sum of its proper divisors (18246278).

28616146 is a wasteful number, since it uses less digits than its factorization.

28616146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15165.

The product of its digits is 13824, while the sum is 34.

The square root of 28616146 is about 5349.4061352640. The cubic root of 28616146 is about 305.8701158943.

It can be divided in two parts, 28616 and 146, that multiplied together give a square (4177936 = 2044²).

The spelling of 28616146 in words is "twenty-eight million, six hundred sixteen thousand, one hundred forty-six".