28377382 has 8 divisors (see below), whose sum is σ = 46435752. Its totient is φ = 12898800.

The previous prime is 28377379. The next prime is 28377389.

28377382 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28377389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644919 + ... + 644962.

It is an arithmetic number, because the mean of its divisors is an integer number (5804469).

Almost surely, 2^28377382 is an apocalyptic number.

28377382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28377382 is a deficient number, since it is larger than the sum of its proper divisors (18058370).

28377382 is a wasteful number, since it uses less digits than its factorization.

28377382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289894.

The product of its digits is 112896, while the sum is 40.

The square root of 28377382 is about 5327.0425190719. The cubic root of 28377382 is about 305.0170446445.

The spelling of 28377382 in words is "twenty-eight million, three hundred seventy-seven thousand, three hundred eighty-two".