28053418 has 8 divisors (see below), whose sum is σ = 42176448. Its totient is φ = 13994604.

The previous prime is 28053413. The next prime is 28053427. The reversal of 28053418 is 81435082.

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

It is a super-2 number, since 2×28053418² = 1573988522965448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28053418.

It is not an unprimeable number, because it can be changed into a prime (28053413) 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 3 ways as a sum of consecutive naturals, for example, 14946 + ... + 16717.

It is an arithmetic number, because the mean of its divisors is an integer number (5272056).

Almost surely, 2^28053418 is an apocalyptic number.

28053418 is a deficient number, since it is larger than the sum of its proper divisors (14123030).

28053418 is a wasteful number, since it uses less digits than its factorization.

28053418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32108.

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

The square root of 28053418 is about 5296.5477435779. The cubic root of 28053418 is about 303.8518798850.

The spelling of 28053418 in words is "twenty-eight million, fifty-three thousand, four hundred eighteen".