285421090426 has 64 divisors (see below), whose sum is σ = 465917760000. Its totient is φ = 130702118400.

The previous prime is 285421090403. The next prime is 285421090439. The reversal of 285421090426 is 624090124582.

It is a super-2 number, since 2×285421090426² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67939126 + ... + 67943326.

It is an arithmetic number, because the mean of its divisors is an integer number (7279965000).

Almost surely, 2^285421090426 is an apocalyptic number.

285421090426 is a deficient number, since it is larger than the sum of its proper divisors (180496669574).

285421090426 is a wasteful number, since it uses less digits than its factorization.

285421090426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 285421090426 in words is "two hundred eighty-five billion, four hundred twenty-one million, ninety thousand, four hundred twenty-six".