421227616 has 12 divisors (see below), whose sum is σ = 829291932. Its totient is φ = 210613792.

The previous prime is 421227601. The next prime is 421227617. The reversal of 421227616 is 616722124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421227617) 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, 6581650 + ... + 6581713.

It is an arithmetic number, because the mean of its divisors is an integer number (69107661).

Almost surely, 2^421227616 is an apocalyptic number.

It is an amenable number.

421227616 is a deficient number, since it is larger than the sum of its proper divisors (408064316).

421227616 is a wasteful number, since it uses less digits than its factorization.

421227616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13163373 (or 13163365 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 421227616 is about 20523.8304417085. The cubic root of 421227616 is about 749.6161686352.

The spelling of 421227616 in words is "four hundred twenty-one million, two hundred twenty-seven thousand, six hundred sixteen".