28350418 has 8 divisors (see below), whose sum is σ = 42548220. Its totient is φ = 14167680.

The previous prime is 28350403. The next prime is 28350431. The reversal of 28350418 is 81405382.

It can be written as a sum of positive squares in 2 ways, for example, as 27699169 + 651249 = 5263^2 + 807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28350418.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5638 + ... + 9406.

Almost surely, 2^28350418 is an apocalyptic number.

28350418 is a deficient number, since it is larger than the sum of its proper divisors (14197802).

28350418 is a wasteful number, since it uses less digits than its factorization.

28350418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28350418 is about 5324.5110573648. The cubic root of 28350418 is about 304.9204056391.

The spelling of 28350418 in words is "twenty-eight million, three hundred fifty thousand, four hundred eighteen".