28441402 has 16 divisors (see below), whose sum is σ = 48146400. Its totient is φ = 12481840.

The previous prime is 28441397. The next prime is 28441403. The reversal of 28441402 is 20414482.

It is not an unprimeable number, because it can be changed into a prime (28441403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21652 + ... + 22927.

It is an arithmetic number, because the mean of its divisors is an integer number (3009150).

Almost surely, 2^28441402 is an apocalyptic number.

28441402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28441402 is a deficient number, since it is larger than the sum of its proper divisors (19704998).

28441402 is a wasteful number, since it uses less digits than its factorization.

28441402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44621.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 28441402 is about 5333.0480965392. The cubic root of 28441402 is about 305.2462474298.

Adding to 28441402 its reverse (20414482), we get a palindrome (48855884).

The spelling of 28441402 in words is "twenty-eight million, four hundred forty-one thousand, four hundred two".