146358728 has 8 divisors (see below), whose sum is σ = 274422630. Its totient is φ = 73179360.

The previous prime is 146358721. The next prime is 146358731. The reversal of 146358728 is 827853641.

It can be written as a sum of positive squares in only one way, i.e., 112741924 + 33616804 = 10618^2 + 5798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (146358721) 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 as a sum of consecutive naturals, namely, 9147413 + ... + 9147428.

Almost surely, 2^146358728 is an apocalyptic number.

It is an amenable number.

146358728 is a deficient number, since it is larger than the sum of its proper divisors (128063902).

146358728 is a wasteful number, since it uses less digits than its factorization.

146358728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18294847 (or 18294843 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 146358728 is about 12097.8811367942. The cubic root of 146358728 is about 526.9946530068.

The spelling of 146358728 in words is "one hundred forty-six million, three hundred fifty-eight thousand, seven hundred twenty-eight".