28304440382 has 8 divisors (see below), whose sum is σ = 42968186856. Its totient is φ = 13981711432.

The previous prime is 28304440361. The next prime is 28304440393.

28304440382 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×28304440382² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85254173 + ... + 85254504.

It is an arithmetic number, because the mean of its divisors is an integer number (5371023357).

Almost surely, 2^28304440382 is an apocalyptic number.

28304440382 is a deficient number, since it is larger than the sum of its proper divisors (14663746474).

28304440382 is a wasteful number, since it uses less digits than its factorization.

28304440382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170508762.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 28304440382 in words is "twenty-eight billion, three hundred four million, four hundred forty thousand, three hundred eighty-two".