28922146 has 12 divisors (see below), whose sum is σ = 47686086. Its totient is φ = 13146320.

The previous prime is 28922143. The next prime is 28922149. The reversal of 28922146 is 64122982.

It is an interprime number because it is at equal distance from previous prime (28922143) and next prime (28922149).

It can be written as a sum of positive squares in only one way, i.e., 26163225 + 2758921 = 5115^2 + 1661^2 .

It is not an unprimeable number, because it can be changed into a prime (28922143) 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 5 ways as a sum of consecutive naturals, for example, 59515 + ... + 59998.

Almost surely, 2^28922146 is an apocalyptic number.

28922146 is a deficient number, since it is larger than the sum of its proper divisors (18763940).

28922146 is a wasteful number, since it uses less digits than its factorization.

28922146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119537 (or 119526 counting only the distinct ones).

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

The square root of 28922146 is about 5377.9313866951. The cubic root of 28922146 is about 306.9565026597.

The spelling of 28922146 in words is "twenty-eight million, nine hundred twenty-two thousand, one hundred forty-six".