42821485 has 8 divisors (see below), whose sum is σ = 58726656. Its totient is φ = 29363280.

The previous prime is 42821461. The next prime is 42821491. The reversal of 42821485 is 58412824.

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

It is not a de Polignac number, because 42821485 - 2¹⁷ = 42690413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42821485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611701 + ... + 611770.

It is an arithmetic number, because the mean of its divisors is an integer number (7340832).

Almost surely, 2^42821485 is an apocalyptic number.

It is an amenable number.

42821485 is a deficient number, since it is larger than the sum of its proper divisors (15905171).

42821485 is a wasteful number, since it uses less digits than its factorization.

42821485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223483.

The product of its digits is 20480, while the sum is 34.

The square root of 42821485 is about 6543.8127265379. The cubic root of 42821485 is about 349.8543203249.

The spelling of 42821485 in words is "forty-two million, eight hundred twenty-one thousand, four hundred eighty-five".