421446536 has 32 divisors (see below), whose sum is σ = 904141440. Its totient is φ = 180411648.

The previous prime is 421446533. The next prime is 421446551. The reversal of 421446536 is 635644124.

It is a junction number, because it is equal to n+sod(n) for n = 421446496 and 421446505.

It is not an unprimeable number, because it can be changed into a prime (421446533) 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 in 7 ways as a sum of consecutive naturals, for example, 50861 + ... + 58563.

It is an arithmetic number, because the mean of its divisors is an integer number (28254420).

Almost surely, 2^421446536 is an apocalyptic number.

It is an amenable number.

421446536 is an abundant number, since it is smaller than the sum of its proper divisors (482694904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421446536 is a wasteful number, since it uses less digits than its factorization.

421446536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693 (or 8689 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 421446536 is about 20529.1630613622. The cubic root of 421446536 is about 749.7460094022.

The spelling of 421446536 in words is "four hundred twenty-one million, four hundred forty-six thousand, five hundred thirty-six".