28842488 has 8 divisors (see below), whose sum is σ = 54079680. Its totient is φ = 14421240.

The previous prime is 28842481. The next prime is 28842491. The reversal of 28842488 is 88424882.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28842488² = 1663778228060288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28842481) 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 as a sum of consecutive naturals, namely, 1802648 + ... + 1802663.

It is an arithmetic number, because the mean of its divisors is an integer number (6759960).

Almost surely, 2^28842488 is an apocalyptic number.

It is an amenable number.

28842488 is a deficient number, since it is larger than the sum of its proper divisors (25237192).

28842488 is a wasteful number, since it uses less digits than its factorization.

28842488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605317 (or 3605313 counting only the distinct ones).

The product of its digits is 262144, while the sum is 44.

The square root of 28842488 is about 5370.5202727483. The cubic root of 28842488 is about 306.6744347959.

The spelling of 28842488 in words is "twenty-eight million, eight hundred forty-two thousand, four hundred eighty-eight".